From 8cb6ed17eb30f190f215031844433981644b064d Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Mon, 19 Dec 2016 15:03:44 +0100 Subject: [PATCH] mmc: block: Avoid uninitialized warning in mmc_blk_issue_discard_rq() MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit With gcc-4.1.2: mmc/core/block.c: In function ‘mmc_blk_issue_discard_rq’: mmc/core/block.c:1150: warning: ‘arg’ may be used uninitialized in this function mmc/core/block.c:1150: warning: ‘nr’ may be used uninitialized in this function mmc/core/block.c:1150: warning: ‘from’ may be used uninitialized in this function While this is a false positive, it can be avoided easily by jumping over the checks for "err" that are always false. Signed-off-by: Geert Uytterhoeven Signed-off-by: Ulf Hansson --- drivers/mmc/core/block.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c index cb1698f268f1..5f942a34d65c 100644 --- a/drivers/mmc/core/block.c +++ b/drivers/mmc/core/block.c @@ -1152,7 +1152,7 @@ static int mmc_blk_issue_discard_rq(struct mmc_queue *mq, struct request *req) if (!mmc_can_erase(card)) { err = -EOPNOTSUPP; - goto out; + goto fail; } from = blk_rq_pos(req); @@ -1181,6 +1181,7 @@ out: goto retry; if (!err) mmc_blk_reset_success(md, type); +fail: blk_end_request(req, err, blk_rq_bytes(req)); return err ? 0 : 1; -- 2.20.1