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authorMiklos Szeredi <mszeredi@suse.cz>2008-02-23 15:23:27 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-23 17:12:13 -0800
commit1a823ac9ff09cbdf39201df37b7ede1f9395de83 (patch)
tree8b61341ef969a3107cb5d3c8fb9317ec250507a6 /fs/fuse
parentfddd9cf82c9f9617d134ae878a8f6b116ebbd43d (diff)
downloadlinux-1a823ac9ff09cbdf39201df37b7ede1f9395de83.tar.gz
fuse: fix permission checking
I added a nasty local variable shadowing bug to fuse in 2.6.24, with the
result, that the 'default_permissions' mount option is basically ignored.

How did this happen?

 - old err declaration in inner scope
 - new err getting declared in outer scope
 - 'return err' from inner scope getting removed
 - old declaration not being noticed

-Wshadow would have saved us, but it doesn't seem practical for
the kernel :(

More testing would have also saved us :((

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/fuse')
-rw-r--r--fs/fuse/dir.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 7fb514b6d852..c4807b3fc8a3 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -906,7 +906,7 @@ static int fuse_permission(struct inode *inode, int mask, struct nameidata *nd)
 	}
 
 	if (fc->flags & FUSE_DEFAULT_PERMISSIONS) {
-		int err = generic_permission(inode, mask, NULL);
+		err = generic_permission(inode, mask, NULL);
 
 		/* If permission is denied, try to refresh file
 		   attributes.  This is also needed, because the root