scsi: ufs: fix static checker warning in ufshcd_populate_vreg

This patch fixes newly introduced static checker warning in
ufshcd_populate_vreg, introduced by UFS power management series.

Warning:
drivers/scsi/ufs/ufshcd-pltfrm.c:167 ufshcd_populate_vreg()
warn: missing error code here? 'devm_kzalloc()' failed. 'ret' = '0'

To fix it we return -ENOMEM and skip the message print.

Signed-off-by: Dolev Raviv <draviv@codeaurora.org>
Reviewed-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>

diff --git a/drivers/scsi/ufs/ufshcd-pltfrm.c b/drivers/scsi/ufs/ufshcd-pltfrm.c
index 8adf067ff019344eaf0c42b97007b4abac65e79e..2cdec7847e73bf24592b0d670f968edcd474fe1d 100644 (file)
--- a/drivers/scsi/ufs/ufshcd-pltfrm.c
+++ b/drivers/scsi/ufs/ufshcd-pltfrm.c
@@ -162,10 +162,8 @@ static int ufshcd_populate_vreg(struct device *dev, const char *name,
        }
 
        vreg = devm_kzalloc(dev, sizeof(*vreg), GFP_KERNEL);
-       if (!vreg) {
-               dev_err(dev, "No memory for %s regulator\n", name);
-               goto out;
-       }
+       if (!vreg)
+               return -ENOMEM;
 
        vreg->name = kstrdup(name, GFP_KERNEL);