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* [geert-renesas-drivers:renesas-clk-for-v5.20 14/19] drivers/clk/renesas/clk-r8a7779.c:137 r8a7779_cpg_clocks_init() warn: possible memory leak of 'data'
@ 2022-06-20  8:39 ` Dan Carpenter
  0 siblings, 0 replies; 5+ messages in thread
From: kernel test robot @ 2022-06-19  5:24 UTC (permalink / raw)
  To: kbuild

[-- Attachment #1: Type: text/plain, Size: 4299 bytes --]

CC: kbuild-all(a)lists.01.org
BCC: lkp(a)intel.com
CC: linux-renesas-soc(a)vger.kernel.org
TO: Geert Uytterhoeven <geert+renesas@glider.be>
CC: Wolfram Sang <wsa-dev@sang-engineering.com>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git renesas-clk-for-v5.20
head:   080bcd8d5997b1a615e17cab02bd9d16d1d4fbf3
commit: 444877983933d0efaf6788eabf2f750b1c175419 [14/19] clk: renesas: r8a7779: Remove struct r8a7779_cpg
:::::: branch date: 2 days ago
:::::: commit date: 6 days ago
config: parisc-randconfig-m031-20220619 (https://download.01.org/0day-ci/archive/20220619/202206191333.YmgTGPjZ-lkp(a)intel.com/config)
compiler: hppa-linux-gcc (GCC) 11.3.0

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>

smatch warnings:
drivers/clk/renesas/clk-r8a7779.c:137 r8a7779_cpg_clocks_init() warn: possible memory leak of 'data'

vim +/data +137 drivers/clk/renesas/clk-r8a7779.c

7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  112  
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  113  static void __init r8a7779_cpg_clocks_init(struct device_node *np)
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  114  {
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  115  	const struct cpg_clk_config *config;
444877983933d0 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2022-06-08  116  	struct clk_onecell_data *data;
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  117  	struct clk **clks;
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  118  	unsigned int i, plla_mult;
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  119  	int num_clks;
931db8a0c646e2 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2016-06-01  120  	u32 mode;
931db8a0c646e2 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2016-06-01  121  
931db8a0c646e2 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2016-06-01  122  	if (rcar_rst_read_mode_pins(&mode))
931db8a0c646e2 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2016-06-01  123  		return;
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  124  
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  125  	num_clks = of_property_count_strings(np, "clock-output-names");
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  126  	if (num_clks < 0) {
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  127  		pr_err("%s: failed to count clocks\n", __func__);
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  128  		return;
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  129  	}
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  130  
444877983933d0 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2022-06-08  131  	data = kzalloc(sizeof(*data), GFP_KERNEL);
6396bb221514d2 drivers/clk/renesas/clk-r8a7779.c  Kees Cook          2018-06-12  132  	clks = kcalloc(CPG_NUM_CLOCKS, sizeof(*clks), GFP_KERNEL);
444877983933d0 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2022-06-08  133  	if (data == NULL || clks == NULL) {
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  134  		/* We're leaking memory on purpose, there's no point in cleaning
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  135  		 * up as the system won't boot anyway.
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  136  		 */
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18 @137  		return;

:::::: The code@line 137 was first introduced by commit
:::::: 7b42a997bfb93c6ae0709f34ec8e2860757804b5 clk: shmobile: r8a7779: Add clocks support

:::::: TO: Simon Horman <horms+renesas@verge.net.au>
:::::: CC: Mike Turquette <mturquette@linaro.org>

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

^ permalink raw reply	[flat|nested] 5+ messages in thread

* [geert-renesas-drivers:renesas-clk-for-v5.20 14/19] drivers/clk/renesas/clk-r8a7779.c:137 r8a7779_cpg_clocks_init() warn: possible memory leak of 'data'
@ 2022-06-20  8:39 ` Dan Carpenter
  0 siblings, 0 replies; 5+ messages in thread
From: Dan Carpenter @ 2022-06-20  8:39 UTC (permalink / raw)
  To: kbuild, Geert Uytterhoeven
  Cc: lkp, kbuild-all, linux-renesas-soc, Wolfram Sang

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git renesas-clk-for-v5.20
head:   080bcd8d5997b1a615e17cab02bd9d16d1d4fbf3
commit: 444877983933d0efaf6788eabf2f750b1c175419 [14/19] clk: renesas: r8a7779: Remove struct r8a7779_cpg
config: parisc-randconfig-m031-20220619 (https://download.01.org/0day-ci/archive/20220619/202206191333.YmgTGPjZ-lkp@intel.com/config)
compiler: hppa-linux-gcc (GCC) 11.3.0

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>

smatch warnings:
drivers/clk/renesas/clk-r8a7779.c:137 r8a7779_cpg_clocks_init() warn: possible memory leak of 'data'

vim +/data +137 drivers/clk/renesas/clk-r8a7779.c

7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  113  static void __init r8a7779_cpg_clocks_init(struct device_node *np)
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  114  {
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  115  	const struct cpg_clk_config *config;
444877983933d0 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2022-06-08  116  	struct clk_onecell_data *data;
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  117  	struct clk **clks;
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  118  	unsigned int i, plla_mult;
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  119  	int num_clks;
931db8a0c646e2 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2016-06-01  120  	u32 mode;
931db8a0c646e2 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2016-06-01  121  
931db8a0c646e2 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2016-06-01  122  	if (rcar_rst_read_mode_pins(&mode))
931db8a0c646e2 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2016-06-01  123  		return;
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  124  
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  125  	num_clks = of_property_count_strings(np, "clock-output-names");
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  126  	if (num_clks < 0) {
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  127  		pr_err("%s: failed to count clocks\n", __func__);
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  128  		return;
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  129  	}
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  130  
444877983933d0 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2022-06-08  131  	data = kzalloc(sizeof(*data), GFP_KERNEL);
6396bb221514d2 drivers/clk/renesas/clk-r8a7779.c  Kees Cook          2018-06-12  132  	clks = kcalloc(CPG_NUM_CLOCKS, sizeof(*clks), GFP_KERNEL);
444877983933d0 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2022-06-08  133  	if (data == NULL || clks == NULL) {
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  134  		/* We're leaking memory on purpose, there's no point in cleaning
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  135  		 * up as the system won't boot anyway.
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  136  		 */
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18 @137  		return;

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp


^ permalink raw reply	[flat|nested] 5+ messages in thread

* [geert-renesas-drivers:renesas-clk-for-v5.20 14/19] drivers/clk/renesas/clk-r8a7779.c:137 r8a7779_cpg_clocks_init() warn: possible memory leak of 'data'
@ 2022-06-20  8:39 ` Dan Carpenter
  0 siblings, 0 replies; 5+ messages in thread
From: Dan Carpenter @ 2022-06-20  8:39 UTC (permalink / raw)
  To: kbuild-all

[-- Attachment #1: Type: text/plain, Size: 3696 bytes --]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git renesas-clk-for-v5.20
head:   080bcd8d5997b1a615e17cab02bd9d16d1d4fbf3
commit: 444877983933d0efaf6788eabf2f750b1c175419 [14/19] clk: renesas: r8a7779: Remove struct r8a7779_cpg
config: parisc-randconfig-m031-20220619 (https://download.01.org/0day-ci/archive/20220619/202206191333.YmgTGPjZ-lkp(a)intel.com/config)
compiler: hppa-linux-gcc (GCC) 11.3.0

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>

smatch warnings:
drivers/clk/renesas/clk-r8a7779.c:137 r8a7779_cpg_clocks_init() warn: possible memory leak of 'data'

vim +/data +137 drivers/clk/renesas/clk-r8a7779.c

7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  113  static void __init r8a7779_cpg_clocks_init(struct device_node *np)
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  114  {
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  115  	const struct cpg_clk_config *config;
444877983933d0 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2022-06-08  116  	struct clk_onecell_data *data;
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  117  	struct clk **clks;
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  118  	unsigned int i, plla_mult;
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  119  	int num_clks;
931db8a0c646e2 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2016-06-01  120  	u32 mode;
931db8a0c646e2 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2016-06-01  121  
931db8a0c646e2 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2016-06-01  122  	if (rcar_rst_read_mode_pins(&mode))
931db8a0c646e2 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2016-06-01  123  		return;
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  124  
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  125  	num_clks = of_property_count_strings(np, "clock-output-names");
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  126  	if (num_clks < 0) {
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  127  		pr_err("%s: failed to count clocks\n", __func__);
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  128  		return;
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  129  	}
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  130  
444877983933d0 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2022-06-08  131  	data = kzalloc(sizeof(*data), GFP_KERNEL);
6396bb221514d2 drivers/clk/renesas/clk-r8a7779.c  Kees Cook          2018-06-12  132  	clks = kcalloc(CPG_NUM_CLOCKS, sizeof(*clks), GFP_KERNEL);
444877983933d0 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2022-06-08  133  	if (data == NULL || clks == NULL) {
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  134  		/* We're leaking memory on purpose, there's no point in cleaning
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  135  		 * up as the system won't boot anyway.
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  136  		 */
7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18 @137  		return;

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: [geert-renesas-drivers:renesas-clk-for-v5.20 14/19] drivers/clk/renesas/clk-r8a7779.c:137 r8a7779_cpg_clocks_init() warn: possible memory leak of 'data'
  2022-06-20  8:39 ` Dan Carpenter
@ 2022-06-20  8:42   ` Geert Uytterhoeven
  -1 siblings, 0 replies; 5+ messages in thread
From: Geert Uytterhoeven @ 2022-06-20  8:42 UTC (permalink / raw)
  To: Dan Carpenter
  Cc: kbuild, kbuild test robot, kbuild-all, Linux-Renesas, Wolfram Sang

Hi Dan,

On Mon, Jun 20, 2022 at 10:39 AM Dan Carpenter <dan.carpenter@oracle.com> wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git renesas-clk-for-v5.20
> head:   080bcd8d5997b1a615e17cab02bd9d16d1d4fbf3
> commit: 444877983933d0efaf6788eabf2f750b1c175419 [14/19] clk: renesas: r8a7779: Remove struct r8a7779_cpg
> config: parisc-randconfig-m031-20220619 (https://download.01.org/0day-ci/archive/20220619/202206191333.YmgTGPjZ-lkp@intel.com/config)
> compiler: hppa-linux-gcc (GCC) 11.3.0
>
> If you fix the issue, kindly add following tag where applicable
> Reported-by: kernel test robot <lkp@intel.com>
> Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
>
> smatch warnings:
> drivers/clk/renesas/clk-r8a7779.c:137 r8a7779_cpg_clocks_init() warn: possible memory leak of 'data'
>
> vim +/data +137 drivers/clk/renesas/clk-r8a7779.c
>
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  113  static void __init r8a7779_cpg_clocks_init(struct device_node *np)
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  114  {
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  115    const struct cpg_clk_config *config;
> 444877983933d0 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2022-06-08  116    struct clk_onecell_data *data;
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  117    struct clk **clks;
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  118    unsigned int i, plla_mult;
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  119    int num_clks;
> 931db8a0c646e2 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2016-06-01  120    u32 mode;
> 931db8a0c646e2 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2016-06-01  121
> 931db8a0c646e2 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2016-06-01  122    if (rcar_rst_read_mode_pins(&mode))
> 931db8a0c646e2 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2016-06-01  123            return;
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  124
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  125    num_clks = of_property_count_strings(np, "clock-output-names");
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  126    if (num_clks < 0) {
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  127            pr_err("%s: failed to count clocks\n", __func__);
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  128            return;
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  129    }
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  130
> 444877983933d0 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2022-06-08  131    data = kzalloc(sizeof(*data), GFP_KERNEL);
> 6396bb221514d2 drivers/clk/renesas/clk-r8a7779.c  Kees Cook          2018-06-12  132    clks = kcalloc(CPG_NUM_CLOCKS, sizeof(*clks), GFP_KERNEL);
> 444877983933d0 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2022-06-08  133    if (data == NULL || clks == NULL) {
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  134            /* We're leaking memory on purpose, there's no point in cleaning
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  135             * up as the system won't boot anyway.
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  136             */
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18 @137            return;

I think the comment says it all ;-)

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: [geert-renesas-drivers:renesas-clk-for-v5.20 14/19] drivers/clk/renesas/clk-r8a7779.c:137 r8a7779_cpg_clocks_init() warn: possible memory leak of 'data'
@ 2022-06-20  8:42   ` Geert Uytterhoeven
  0 siblings, 0 replies; 5+ messages in thread
From: Geert Uytterhoeven @ 2022-06-20  8:42 UTC (permalink / raw)
  To: kbuild-all

[-- Attachment #1: Type: text/plain, Size: 4264 bytes --]

Hi Dan,

On Mon, Jun 20, 2022 at 10:39 AM Dan Carpenter <dan.carpenter@oracle.com> wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git renesas-clk-for-v5.20
> head:   080bcd8d5997b1a615e17cab02bd9d16d1d4fbf3
> commit: 444877983933d0efaf6788eabf2f750b1c175419 [14/19] clk: renesas: r8a7779: Remove struct r8a7779_cpg
> config: parisc-randconfig-m031-20220619 (https://download.01.org/0day-ci/archive/20220619/202206191333.YmgTGPjZ-lkp(a)intel.com/config)
> compiler: hppa-linux-gcc (GCC) 11.3.0
>
> If you fix the issue, kindly add following tag where applicable
> Reported-by: kernel test robot <lkp@intel.com>
> Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
>
> smatch warnings:
> drivers/clk/renesas/clk-r8a7779.c:137 r8a7779_cpg_clocks_init() warn: possible memory leak of 'data'
>
> vim +/data +137 drivers/clk/renesas/clk-r8a7779.c
>
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  113  static void __init r8a7779_cpg_clocks_init(struct device_node *np)
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  114  {
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  115    const struct cpg_clk_config *config;
> 444877983933d0 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2022-06-08  116    struct clk_onecell_data *data;
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  117    struct clk **clks;
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  118    unsigned int i, plla_mult;
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  119    int num_clks;
> 931db8a0c646e2 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2016-06-01  120    u32 mode;
> 931db8a0c646e2 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2016-06-01  121
> 931db8a0c646e2 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2016-06-01  122    if (rcar_rst_read_mode_pins(&mode))
> 931db8a0c646e2 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2016-06-01  123            return;
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  124
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  125    num_clks = of_property_count_strings(np, "clock-output-names");
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  126    if (num_clks < 0) {
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  127            pr_err("%s: failed to count clocks\n", __func__);
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  128            return;
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  129    }
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  130
> 444877983933d0 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2022-06-08  131    data = kzalloc(sizeof(*data), GFP_KERNEL);
> 6396bb221514d2 drivers/clk/renesas/clk-r8a7779.c  Kees Cook          2018-06-12  132    clks = kcalloc(CPG_NUM_CLOCKS, sizeof(*clks), GFP_KERNEL);
> 444877983933d0 drivers/clk/renesas/clk-r8a7779.c  Geert Uytterhoeven 2022-06-08  133    if (data == NULL || clks == NULL) {
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  134            /* We're leaking memory on purpose, there's no point in cleaning
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  135             * up as the system won't boot anyway.
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18  136             */
> 7b42a997bfb93c drivers/clk/shmobile/clk-r8a7779.c Simon Horman       2014-04-18 @137            return;

I think the comment says it all ;-)

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert(a)linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2022-06-20  8:42 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-06-19  5:24 [geert-renesas-drivers:renesas-clk-for-v5.20 14/19] drivers/clk/renesas/clk-r8a7779.c:137 r8a7779_cpg_clocks_init() warn: possible memory leak of 'data' kernel test robot
2022-06-20  8:39 ` Dan Carpenter
2022-06-20  8:39 ` Dan Carpenter
2022-06-20  8:42 ` Geert Uytterhoeven
2022-06-20  8:42   ` Geert Uytterhoeven

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