ext4: ext4_fill_super shouldn't return 0 on corruption

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At the start of ext4_fill_super, ret is set to -EINVAL, and any failure path
out of that function returns ret.  However, the generic_check_addressable
clause sets ret = 0 (if it passes), which means that a subsequent failure (e.g.
a group checksum error) returns 0 even though the mount should fail.  This
causes vfs_kern_mount in turn to think that the mount succeeded, leading to an
oops.

A simple fix is to avoid using ret for the generic_check_addressable check,
which was last changed in commit 30ca22c70e.

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

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Darrick J. Wong 2010-11-19 09:56:44 -05:00 • committed by Theodore Ts'o

parent 0587aa3d11

commit 5a9ae68a34

1 changed files with 3 additions and 2 deletions

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fs/ext4/super.c

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