tree 465df391e8858ae8575a2bf72815e4302ab83386
parent fcdd57c8902a936a616df2066d873b38ef3ed364
author Tanya Brokhman <tlinder@codeaurora.org> 1396339272 +0300
committer Artem Bityutskiy <artem.bityutskiy@linux.intel.com> 1399271493 +0300

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>