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| author | Tanya Brokhman <tlinder@codeaurora.org> | 2014-04-01 11:01:12 +0300 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2014-09-11 15:53:25 +0200 |
| commit | d8c4628977332edb57350d14919019acc2f6114f (patch) | |
| tree | 176dc2836f77fecf1bb443b0a5f61b741e8f6f57 | |
| parent | eaa73bfe0269554bf16697b1997475d9d738b290 (diff) | |
| download | barebox-d8c4628977332edb57350d14919019acc2f6114f.tar.gz barebox-d8c4628977332edb57350d14919019acc2f6114f.tar.xz | |
UBI: fix error path in __wl_get_peb
In case of an error (if there are not free PEB's for example),
__wl_get_peb will return a negative value. In order to prevent access
violation we need to test the returned value prior to using it later on.
Signed-off-by: Tatyana Brokhman <tlinder@codeaurora.org>
Reviewed-by: Dolev Raviv <draviv@codeaurora.org>
Acked-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
| -rw-r--r-- | drivers/mtd/ubi/wl.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c index c083cac58b..4ecbe1838e 100644 --- a/drivers/mtd/ubi/wl.c +++ b/drivers/mtd/ubi/wl.c @@ -646,6 +646,9 @@ int ubi_wl_get_peb(struct ubi_device *ubi) peb = __wl_get_peb(ubi); + if (peb < 0) + return peb; + err = ubi_self_check_all_ff(ubi, peb, ubi->vid_hdr_aloffset, ubi->peb_size - ubi->vid_hdr_aloffset); if (err) { |