btrfs: check-integrity: Fix returned errno codes
authorLuis de Bethencourt <luisbg@osg.samsung.com>
Tue, 20 Oct 2015 13:56:22 +0000 (14:56 +0100)
committerDavid Sterba <dsterba@suse.com>
Wed, 21 Oct 2015 16:29:44 +0000 (18:29 +0200)
commit0b8d8ce0297c4376d50318692e0aa53a3aaed90c
tree4e8c8951466c5f2deae0d740295587b00e88ebbf
parentd91876496bcf2236efb75ef12378c964bbe8c970
btrfs: check-integrity: Fix returned errno codes

check-integrity is using -1 instead of the -ENOMEM defined macro to
specify that a buffer allocation failed. Since the error number is
propagated, the caller will get a -EPERM which is the wrong error
condition.

Also, the smatch tool complains with the following warnings:
btrfsic_process_superblock() warn: returning -1 instead of -ENOMEM is sloppy
btrfsic_read_block() warn: returning -1 instead of -ENOMEM is sloppy

Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Signed-off-by: David Sterba <dsterba@suse.com>
fs/btrfs/check-integrity.c