diff options
| author | Mikulas Patocka <mpatocka@redhat.com> | 2025-11-17 21:42:02 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-12-07 06:08:23 +0900 |
| commit | 295b169a10186c3d8e5529ed8e544f7993c6f6e6 (patch) | |
| tree | f2bad6c8d99bd79ac9b1e000ab93641aeddd8101 /drivers | |
| parent | 6dfc11c4df38a218e77684b1e72c4f7252069d6a (diff) | |
| download | linux-295b169a10186c3d8e5529ed8e544f7993c6f6e6.tar.gz linux-295b169a10186c3d8e5529ed8e544f7993c6f6e6.tar.bz2 linux-295b169a10186c3d8e5529ed8e544f7993c6f6e6.zip | |
dm-verity: fix unreliable memory allocation
commit fe680d8c747f4e676ac835c8c7fb0f287cd98758 upstream.
GFP_NOWAIT allocation may fail anytime. It needs to be changed to
GFP_NOIO. There's no need to handle an error because mempool_alloc with
GFP_NOIO can't fail.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Reviewed-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/md/dm-verity-fec.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/drivers/md/dm-verity-fec.c b/drivers/md/dm-verity-fec.c index 442437e4e03b..1a23d3ebf098 100644 --- a/drivers/md/dm-verity-fec.c +++ b/drivers/md/dm-verity-fec.c @@ -314,11 +314,7 @@ static int fec_alloc_bufs(struct dm_verity *v, struct dm_verity_fec_io *fio) if (fio->bufs[n]) continue; - fio->bufs[n] = mempool_alloc(&v->fec->prealloc_pool, GFP_NOWAIT); - if (unlikely(!fio->bufs[n])) { - DMERR("failed to allocate FEC buffer"); - return -ENOMEM; - } + fio->bufs[n] = mempool_alloc(&v->fec->prealloc_pool, GFP_NOIO); } /* try to allocate the maximum number of buffers */ |