scsi: ufs: remove unnecessary goto label

When buff_ascii kmalloc failed, there is no need to call kfree, it
should return -ENOMEM directly, this patch fixes it.
Signed-off-by: NTiezhu Yang <kernelpatch@126.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/ufs/ufshcd.c

@@ -2137,7 +2137,7 @@ int ufshcd_read_string_desc(struct ufs_hba *hba, int desc_index, u8 *buf,
 		buff_ascii = kmalloc(ascii_len, GFP_KERNEL);
 		if (!buff_ascii) {
 			err = -ENOMEM;
-			goto out_free_buff;
+			goto out;
 		}
 
 		/*
@@ -2156,7 +2156,6 @@ int ufshcd_read_string_desc(struct ufs_hba *hba, int desc_index, u8 *buf,
 				size - QUERY_DESC_HDR_SIZE);
 		memcpy(buf + QUERY_DESC_HDR_SIZE, buff_ascii, ascii_len);
 		buf[QUERY_DESC_LENGTH_OFFSET] = ascii_len + QUERY_DESC_HDR_SIZE;
-out_free_buff:
 		kfree(buff_ascii);
 	}
 out: