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-rw-r--r--drivers/md/dm-snap.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index 9cb392b3e920..9bc814aa2bbd 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -1152,6 +1152,8 @@ static int snapshot_status(struct dm_target *ti, status_type_t type,
1152 unsigned sz = 0; 1152 unsigned sz = 0;
1153 struct dm_snapshot *snap = ti->private; 1153 struct dm_snapshot *snap = ti->private;
1154 1154
1155 down_write(&snap->lock);
1156
1155 switch (type) { 1157 switch (type) {
1156 case STATUSTYPE_INFO: 1158 case STATUSTYPE_INFO:
1157 if (!snap->valid) 1159 if (!snap->valid)
@@ -1183,6 +1185,8 @@ static int snapshot_status(struct dm_target *ti, status_type_t type,
1183 break; 1185 break;
1184 } 1186 }
1185 1187
1188 up_write(&snap->lock);
1189
1186 return 0; 1190 return 0;
1187} 1191}
1188 1192