scsi: ufs: core: Remove unnecessary ret in ufshcd_populate_vreg()

The local variable 'ret' is always zero. Remove it and return 0 at the end
of the function.

Link: https://lore.kernel.org/r/20210310082741.647-1-zbestahu@gmail.comSigned-off-by: Yue Hu <huyue2@yulong.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/ufs/ufshcd-pltfrm.c

@@ -106,7 +106,6 @@ static int ufshcd_parse_clock_info(struct ufs_hba *hba)
 static int ufshcd_populate_vreg(struct device *dev, const char *name,
 		struct ufs_vreg **out_vreg)
 {
-	int ret = 0;
 	char prop_name[MAX_PROP_SIZE];
 	struct ufs_vreg *vreg = NULL;
 	struct device_node *np = dev->of_node;
@@ -135,9 +134,8 @@ static int ufshcd_populate_vreg(struct device *dev, const char *name,
 		vreg->max_uA = 0;
 	}
 out:
-	if (!ret)
-		*out_vreg = vreg;
-	return ret;
+	*out_vreg = vreg;
+	return 0;
 }
 
 /**