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mmc: block: Avoid uninitialized warning in mmc_blk_issue_discard_rq() 

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 <geert@linux-m68k.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Geert Uytterhoeven 2016-12-19 15:03:44 +01:00 committed by Ulf Hansson
parent 46bc5c408e
commit 8cb6ed17eb
1 changed files with 2 additions and 1 deletions
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3
drivers/mmc/core/block.c
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@ -1152,7 +1152,7 @@ static int mmc_blk_issue_discard_rq(struct mmc_queue *mq, struct request *req)
if (!mmc_can_erase(card)) { if (!mmc_can_erase(card)) {
err = -EOPNOTSUPP; err = -EOPNOTSUPP;
goto out; goto fail;
} }
from = blk_rq_pos(req); from = blk_rq_pos(req);
@ -1181,6 +1181,7 @@ static int mmc_blk_issue_discard_rq(struct mmc_queue *mq, struct request *req)
goto retry; goto retry;
if (!err) if (!err)
mmc_blk_reset_success(md, type); mmc_blk_reset_success(md, type);
fail:
blk_end_request(req, err, blk_rq_bytes(req)); blk_end_request(req, err, blk_rq_bytes(req));
return err ? 0 : 1; return err ? 0 : 1;