* [linux-rt-devel:linux-5.13.y-rt-rebase 11/222] kernel/printk/printk.c:2189:5-8: Unneeded variable: "ret". Return "- ENOMEM" on line 2294
@ 2021-07-08 15:16 kernel test robot
2021-07-08 15:17 ` [PATCH] printk: fix returnvar.cocci warnings kernel test robot
0 siblings, 1 reply; 2+ messages in thread
From: kernel test robot @ 2021-07-08 15:16 UTC (permalink / raw)
To: John Ogness
Cc: kbuild-all, linux-kernel, Thomas Gleixner, Sebastian Andrzej Siewior
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-5.13.y-rt-rebase
head: 7e175e6b59975c8901ad370f7818937f68de45c1
commit: c4049cfc8a0327c22d56855882d8e2cffd6d20fa [11/222] printk: move console printing to kthreads
config: arm-randconfig-c003-20210707 (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
cocci warnings: (new ones prefixed by >>)
>> kernel/printk/printk.c:2189:5-8: Unneeded variable: "ret". Return "- ENOMEM" on line 2294
Please review and possibly fold the followup patch.
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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^ permalink raw reply [flat|nested] 2+ messages in thread
* [PATCH] printk: fix returnvar.cocci warnings
2021-07-08 15:16 [linux-rt-devel:linux-5.13.y-rt-rebase 11/222] kernel/printk/printk.c:2189:5-8: Unneeded variable: "ret". Return "- ENOMEM" on line 2294 kernel test robot
@ 2021-07-08 15:17 ` kernel test robot
0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2021-07-08 15:17 UTC (permalink / raw)
To: John Ogness
Cc: kbuild-all, linux-kernel, Thomas Gleixner, Sebastian Andrzej Siewior
From: kernel test robot <lkp@intel.com>
kernel/printk/printk.c:2189:5-8: Unneeded variable: "ret". Return "- ENOMEM" on line 2294
Remove unneeded variable used to store return value.
Generated by: scripts/coccinelle/misc/returnvar.cocci
Fixes: c4049cfc8a03 ("printk: move console printing to kthreads")
CC: John Ogness <john.ogness@linutronix.de>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: kernel test robot <lkp@intel.com>
---
tree: https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-5.13.y-rt-rebase
head: 7e175e6b59975c8901ad370f7818937f68de45c1
commit: c4049cfc8a0327c22d56855882d8e2cffd6d20fa [11/222] printk: move console printing to kthreads
:::::: branch date: 19 hours ago
:::::: commit date: 19 hours ago
printk.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -2186,7 +2186,6 @@ static int printk_kthread_func(void *dat
struct printk_record r;
char *ext_text = NULL;
size_t dropped_len;
- int ret = -ENOMEM;
char *text = NULL;
char *write_text;
size_t len;
@@ -2291,7 +2290,7 @@ out:
pr_info("%sconsole [%s%d]: printing thread stopped\n",
(con->flags & CON_BOOT) ? "boot" : "",
con->name, con->index);
- return ret;
+ return -ENOMEM;
}
/* Must be called within console_lock(). */
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