[PATCH 9/9] parallels: Replace qemu_co_mutex_lock by WITH_QEMU_LOCK_GUARD

[Alexander Ivanov]

Replace the way we use mutex in parallels_co_check() for simplier
and less error prone code.

Signed-off-by: Alexander Ivanov <alexander.ivanov@virtuozzo.com>
---
 block/parallels.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/block/parallels.c b/block/parallels.c
index f19e86d5d2..173c5d3721 100644
--- a/block/parallels.c
+++ b/block/parallels.c
@@ -563,24 +563,22 @@ static int coroutine_fn 
parallels_co_check(BlockDriverState *bs,
     BDRVParallelsState *s = bs->opaque;
     int ret = 0;
 
-    qemu_co_mutex_lock(&s->lock);
+    WITH_QEMU_LOCK_GUARD(&s->lock) {
+        parallels_check_unclean(bs, res, fix);
 
-    parallels_check_unclean(bs, res, fix);
+        ret = parallels_check_outside_image(bs, res, fix);
+        if (ret < 0) {
+            return ret;
+        }
 
-    ret = parallels_check_outside_image(bs, res, fix);
-    if (ret < 0) {
-        goto out;
-    }
-
-    ret = parallels_check_leak(bs, res, fix);
-    if (ret < 0) {
-        goto out;
-    }
+        ret = parallels_check_leak(bs, res, fix);
+        if (ret < 0) {
+            return ret;
+        }
 
-    parallels_collect_statistics(bs, res, fix);
+        parallels_collect_statistics(bs, res, fix);
 
-out:
-    qemu_co_mutex_unlock(&s->lock);
+    }
 
     if (ret == 0) {
         ret = bdrv_co_flush(bs);
-- 
2.34.1