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<p>Acked-by: Maxim Patlasov <a class="moz-txt-link-rfc2396E"
href="mailto:mpatlasov@virtuozzo.com"><mpatlasov@virtuozzo.com></a></p>
<br>
<div class="moz-cite-prefix">On 08/18/2016 09:51 AM, Andrey Ryabinin
wrote:<br>
</div>
<blockquote
cite="mid:1471539077-9862-1-git-send-email-aryabinin@virtuozzo.com"
type="cite">
<pre wrap="">If freeze_bdev() called in find_and_freeze_bdev() fails we should
drop a reference counter grabbed by bdget_disk() call.
Signed-off-by: Andrey Ryabinin <a class="moz-txt-link-rfc2396E" href="mailto:aryabinin@virtuozzo.com"><aryabinin@virtuozzo.com></a>
---
drivers/block/ploop/dev.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/block/ploop/dev.c b/drivers/block/ploop/dev.c
index 83b0e32..453d36e 100644
--- a/drivers/block/ploop/dev.c
+++ b/drivers/block/ploop/dev.c
@@ -3339,7 +3339,10 @@ static struct super_block *find_and_freeze_bdev(struct gendisk *disk,
bdev = NULL;
}
- *bdev_pp = bdev;
+ if (IS_ERR(sb))
+ bdput(bdev);
+ else
+ *bdev_pp = bdev;
return sb;
}
</pre>
</blockquote>
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