4.14-stable review patch. If anyone has any objections, please let me know.
------------------ From: Wei Yongjun <weiyongj...@huawei.com> commit 7233982ade15eeac05c6f351e8d347406e6bcd2f upstream. Fix to return error code -ENOMEM from the kmem_cache_alloc() error handling case instead of 0, as done elsewhere in this function. Fixes: f78e5623f45b ("ubi: fastmap: Erase outdated anchor PEBs during attach") Signed-off-by: Wei Yongjun <weiyongj...@huawei.com> Reviewed-by: Boris Brezillon <boris.brezil...@free-electrons.com> Signed-off-by: Richard Weinberger <rich...@nod.at> Cc: Ben Hutchings <ben.hutchi...@codethink.co.uk> Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org> --- drivers/mtd/ubi/wl.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) --- a/drivers/mtd/ubi/wl.c +++ b/drivers/mtd/ubi/wl.c @@ -1615,8 +1615,10 @@ int ubi_wl_init(struct ubi_device *ubi, cond_resched(); e = kmem_cache_alloc(ubi_wl_entry_slab, GFP_KERNEL); - if (!e) + if (!e) { + err = -ENOMEM; goto out_free; + } e->pnum = aeb->pnum; e->ec = aeb->ec; @@ -1635,8 +1637,10 @@ int ubi_wl_init(struct ubi_device *ubi, cond_resched(); e = kmem_cache_alloc(ubi_wl_entry_slab, GFP_KERNEL); - if (!e) + if (!e) { + err = -ENOMEM; goto out_free; + } e->pnum = aeb->pnum; e->ec = aeb->ec;