4.3-stable review patch. If anyone has any objections, please let me know. ------------------ From: Ming Lei <ming.lei@xxxxxxxxxxxxx> commit 578270bfbd2803dc7b0b03fbc2ac119efbc73195 upstream. Inside blk_bio_segment_split(), previous bvec pointer(bvprvp) always points to the iterator local variable, which is obviously wrong, so fix it by pointing to the local variable of 'bvprv'. Fixes: 5014c311baa2b(block: fix bogus compiler warnings in blk-merge.c) Reported-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> Reported-by: Mark Salter <msalter@xxxxxxxxxx> Tested-by: Laurent Dufour <ldufour@xxxxxxxxxxxxxxxxxx> Tested-by: Mark Salter <msalter@xxxxxxxxxx> Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxxxxx> Signed-off-by: Jens Axboe <axboe@xxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- block/blk-merge.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/block/blk-merge.c +++ b/block/blk-merge.c @@ -91,7 +91,7 @@ static struct bio *blk_bio_segment_split seg_size += bv.bv_len; bvprv = bv; - bvprvp = &bv; + bvprvp = &bvprv; sectors += bv.bv_len >> 9; continue; } @@ -101,7 +101,7 @@ new_segment: nsegs++; bvprv = bv; - bvprvp = &bv; + bvprvp = &bvprv; seg_size = bv.bv_len; sectors += bv.bv_len >> 9; } -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html