From: kernel test robot <lkp(a)intel.com&gt; drivers/nvme/host/fabrics.c:1095:5-8: Unneeded variable: "ret". Return "0" on line 1109 Remove unneeded variable used to store return value. Generated by: scripts/coccinelle/misc/returnvar.cocci Fixes: f18ee3d98815 ("nvme-fabrics: print out valid arguments when reading from /dev/nvme-fabrics") CC: Hannes Reinecke <hare(a)suse.de&gt; Reported-by: kernel test robot <lkp(a)intel.com&gt; Signed-off-by: kernel test robot <lkp(a)intel.com&gt; --- tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: e3a8b6a1e70c37702054ae3c7c07ed828435d8ee commit: f18ee3d988157ebcadc9b7e5fd34811938f50223 nvme-fabrics: print out valid arguments when reading from /dev/nvme-fabrics :::::: branch date: 5 hours ago :::::: commit date: 4 weeks ago fabrics.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/drivers/nvme/host/fabrics.c +++ b/drivers/nvme/host/fabrics.c @@ -1092,7 +1092,6 @@ static void __nvmf_concat_opt_tokens(str static int nvmf_dev_show(struct seq_file *seq_file, void *private) { struct nvme_ctrl *ctrl; - int ret = 0; mutex_lock(&nvmf_dev_mutex); ctrl = seq_file->private; @@ -1106,7 +1105,7 @@ static int nvmf_dev_show(struct seq_file out_unlock: mutex_unlock(&nvmf_dev_mutex); - return ret; + return 0; } static int nvmf_dev_open(struct inode *inode, struct file *file)