[PATCH 3.16.y-ckt 074/180] UBI: account for bitflips in both the VID header and data

From: Luis Henriques
Date: Thu May 07 2015 - 05:48:06 EST


3.16.7-ckt11 -stable review patch. If anyone has any objections, please let me know.

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

From: Brian Norris <computersforpeace@xxxxxxxxx>

commit 8eef7d70f7c6772c3490f410ee2bceab3b543fa1 upstream.

We are completely discarding the earlier value of 'bitflips', which
could reflect a bitflip found in ubi_io_read_vid_hdr(). Let's use the
bitwise OR of header and data 'bitflip' statuses instead.

Coverity CID #1226856

Signed-off-by: Brian Norris <computersforpeace@xxxxxxxxx>
Signed-off-by: Richard Weinberger <richard@xxxxxx>
Signed-off-by: Luis Henriques <luis.henriques@xxxxxxxxxxxxx>
---
drivers/mtd/ubi/attach.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/ubi/attach.c b/drivers/mtd/ubi/attach.c
index 6f27d9a1be3b..21841fe25ad3 100644
--- a/drivers/mtd/ubi/attach.c
+++ b/drivers/mtd/ubi/attach.c
@@ -408,7 +408,7 @@ int ubi_compare_lebs(struct ubi_device *ubi, const struct ubi_ainf_peb *aeb,
second_is_newer = !second_is_newer;
} else {
dbg_bld("PEB %d CRC is OK", pnum);
- bitflips = !!err;
+ bitflips |= !!err;
}
mutex_unlock(&ubi->buf_mutex);

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