[skn:v5.13/ffa 5/6] drivers/firmware/arm_ffa/driver.c:290:11-15: ERROR: reference preceded by free on line 288

[skn:v5.13/ffa 5/6] drivers/firmware/arm_ffa/driver.c:290:11-15: ERROR: reference preceded by free on line 288

[kernel test robot]

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CC: kbuild-all(a)lists.01.org
TO: Sudeep Holla <sudeep.holla@arm.com>
CC: Jens Wiklander <jens.wiklander@linaro.org>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux.git v5.13/ffa
head:   84cc1893ebd6f69bf72ff94ad32e57eb0ec9a1f0
commit: 437b70e4d6815e6bf719f5295014342d0b964ccb [5/6] firmware: arm_ffa: Setup in-kernel users of FFA partitions
:::::: branch date: 16 hours ago
:::::: commit date: 16 hours ago
config: arm64-allyesconfig (attached as .config)
compiler: aarch64-linux-gcc (GCC) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Julia Lawall <julia.lawall@lip6.fr>


cocci warnings: (new ones prefixed by >>)
>> drivers/firmware/arm_ffa/driver.c:290:11-15: ERROR: reference preceded by free on line 288

vim +290 drivers/firmware/arm_ffa/driver.c

437b70e4d6815e Sudeep Holla 2021-04-30  266  
437b70e4d6815e Sudeep Holla 2021-04-30  267  /* buffer is allocated and caller must free the same if returned count > 0 */
437b70e4d6815e Sudeep Holla 2021-04-30  268  static int
437b70e4d6815e Sudeep Holla 2021-04-30  269  ffa_partition_probe(const uuid_t *uuid, struct ffa_partition_info **buffer)
437b70e4d6815e Sudeep Holla 2021-04-30  270  {
437b70e4d6815e Sudeep Holla 2021-04-30  271  	int count;
437b70e4d6815e Sudeep Holla 2021-04-30  272  	u32 uuid0_4[4];
437b70e4d6815e Sudeep Holla 2021-04-30  273  	struct ffa_partition_info *pbuf;
437b70e4d6815e Sudeep Holla 2021-04-30  274  
437b70e4d6815e Sudeep Holla 2021-04-30  275  	export_uuid((u8 *)uuid0_4, uuid);
437b70e4d6815e Sudeep Holla 2021-04-30  276  	count = __ffa_partition_info_get(uuid0_4[0], uuid0_4[1], uuid0_4[2],
437b70e4d6815e Sudeep Holla 2021-04-30  277  					 uuid0_4[3], NULL, 0);
437b70e4d6815e Sudeep Holla 2021-04-30  278  	if (count <= 0)
437b70e4d6815e Sudeep Holla 2021-04-30  279  		return count;
437b70e4d6815e Sudeep Holla 2021-04-30  280  
437b70e4d6815e Sudeep Holla 2021-04-30  281  	pbuf = kcalloc(count, sizeof(*pbuf), GFP_KERNEL);
437b70e4d6815e Sudeep Holla 2021-04-30  282  	if (!pbuf)
437b70e4d6815e Sudeep Holla 2021-04-30  283  		return -ENOMEM;
437b70e4d6815e Sudeep Holla 2021-04-30  284  
437b70e4d6815e Sudeep Holla 2021-04-30  285  	count = __ffa_partition_info_get(uuid0_4[0], uuid0_4[1], uuid0_4[2],
437b70e4d6815e Sudeep Holla 2021-04-30  286  					 uuid0_4[3], pbuf, count);
437b70e4d6815e Sudeep Holla 2021-04-30  287  	if (count <= 0)
437b70e4d6815e Sudeep Holla 2021-04-30 @288  		kfree(pbuf);
437b70e4d6815e Sudeep Holla 2021-04-30  289  
437b70e4d6815e Sudeep Holla 2021-04-30 @290  	*buffer = pbuf;
437b70e4d6815e Sudeep Holla 2021-04-30  291  	return count;
437b70e4d6815e Sudeep Holla 2021-04-30  292  }
437b70e4d6815e Sudeep Holla 2021-04-30  293  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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