[PATCH] dm snapshot: remove unneeded variable

[cgel . zte]

From: ran jianping <ran.jianping@xxxxxxxxxx>

Fix the following coccicheck review:
./drivers/md/dm-snap-transient.c:91:10-12: Unneeded variable

Remove unneeded variable used to store return value.

Reported-by: Zeal Robot <zealci@xxxxxxxxxx>
Signed-off-by: ran jianping <ran.jianping@xxxxxxxxxx>
---
 drivers/md/dm-snap-transient.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/md/dm-snap-transient.c b/drivers/md/dm-snap-transient.c
index 0e0ae4c36b37..d95b59855da0 100644
--- a/drivers/md/dm-snap-transient.c
+++ b/drivers/md/dm-snap-transient.c
@@ -88,7 +88,6 @@ static unsigned transient_status(struct dm_exception_store *store,
 				 status_type_t status, char *result,
 				 unsigned maxlen)
 {
-	unsigned sz = 0;
 
 	switch (status) {
 	case STATUSTYPE_INFO:
@@ -101,7 +100,7 @@ static unsigned transient_status(struct dm_exception_store *store,
 		break;
 	}
 
-	return sz;
+	return 0;
 }
 
 static struct dm_exception_store_type _transient_type = {
-- 
2.25.1