Author: kib
Date: Sun Feb 14 12:10:49 2010
New Revision: 203866
URL: http://svn.freebsd.org/changeset/base/203866
Log:
Invalid filesystem might cause the bp to be never read.
Noted by: Pedro F. Giffuni <giffunip tutopia com>
Obtanined from: NetBSD
MFC after: 1 week
Modified:
head/sys/fs/msdosfs/msdosfs_fat.c
Modified: head/sys/fs/msdosfs/msdosfs_fat.c
==============================================================================
--- head/sys/fs/msdosfs/msdosfs_fat.c Sun Feb 14 12:08:44 2010
(r203865)
+++ head/sys/fs/msdosfs/msdosfs_fat.c Sun Feb 14 12:10:49 2010
(r203866)
@@ -944,7 +944,8 @@ fillinusemap(pmp)
if (readcn == 0)
usemap_free(pmp, cn);
}
- brelse(bp);
+ if (bp != NULL)
+ brelse(bp);
return (0);
}
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