Author: imp
Date: Sun Mar 1 21:41:37 2015
New Revision: 279502
URL: https://svnweb.freebsd.org/changeset/base/279502
Log:
nandfs_meta_bread() calls bread() which can set bp to NULL in some
error cases. Calling brelse() with a NULL pointer is not allowed,
so only call brelse() when the bp is non-NULL.
Reported by: Maxime Villard (reported as uninitialized variable)
Modified:
head/sys/fs/nandfs/bmap.c
Modified: head/sys/fs/nandfs/bmap.c
==============================================================================
--- head/sys/fs/nandfs/bmap.c Sun Mar 1 21:41:35 2015 (r279501)
+++ head/sys/fs/nandfs/bmap.c Sun Mar 1 21:41:37 2015 (r279502)
@@ -317,7 +317,8 @@ bmap_truncate_indirect(struct nandfs_nod
error = nandfs_bread_meta(node, lbn, NOCRED, 0, &bp);
if (error) {
- brelse(bp);
+ if (bp != NULL)
+ brelse(bp);
return (error);
}
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