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Subject[PATCH 4.14 122/126] mtd: ubi: wl: Fix error return code in ubi_wl_init()
Date
4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Wei Yongjun <weiyongjun1@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Fixes: f78e5623f45b ("ubi: fastmap: Erase outdated anchor PEBs during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 <weiyongjun1@huawei.com>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Cc: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@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;

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