tree e6dd0a9195fabdddf52a0076b2931a2057adf3d9
parent 1573d2caf713874cfe0d1336c823d0fb548d8bed
author Jan Kara <jack@suse.cz> 1475581446 +0200
committer Jan Kara <jack@suse.cz> 1476782901 +0200

isofs: Do not return EACCES for unknown filesystems

When isofs_mount() is called to mount a device read-write, it returns
EACCES even before it checks that the device actually contains an isofs
filesystem. This may confuse mount(8) which then tries to mount all
subsequent filesystem types in read-only mode.

Fix the problem by returning EACCES only once we verify that the device
indeed contains an iso9660 filesystem.

CC: stable@vger.kernel.org
Fixes: 17b7f7cf58926844e1dd40f5eb5348d481deca6a
Reported-by: Kent Overstreet <kent.overstreet@gmail.com>
Reported-by: Karel Zak <kzak@redhat.com>
Signed-off-by: Jan Kara <jack@suse.cz>