[3/3] mmc: core: refactor mmc_request_done()

Message ID 20170328084031.11995-4-linus.walleij@linaro.org
State New
Headers show
Series
  • The uncontroversial patches
Related show

Commit Message

Linus Walleij March 28, 2017, 8:40 a.m.
We have this construction:

if (a && b && !c)
   finalize;
else
   block;
   finalize;

Which is equivalent by boolean logic to:

if (!a || !b || c)
   block;
finalize;

Which is simpler code.

Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

---
 drivers/mmc/core/core.c | 27 ++++++++++++++++-----------
 1 file changed, 16 insertions(+), 11 deletions(-)

-- 
2.9.3

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Patch

diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index c0b3f80c1f39..86314fa85dd2 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -172,14 +172,16 @@  void mmc_request_done(struct mmc_host *host, struct mmc_request *mrq)
 
 	trace_mmc_request_done(host, mrq);
 
-	if (err && cmd->retries && !mmc_card_removed(host->card)) {
-		/*
-		 * Request starter must handle retries - see
-		 * mmc_wait_for_req_done().
-		 */
-		if (mrq->done)
-			mrq->done(mrq);
-	} else {
+	/*
+	 * We list various conditions for the command to be considered
+	 * properly done:
+	 *
+	 * - There was no error, OK fine then
+	 * - We are not doing some kind of retry
+	 * - The card was removed (...so just complete everything no matter
+	 *   if there are errors or retries)
+	 */
+	if (!err || !cmd->retries || mmc_card_removed(host->card)) {
 		mmc_should_fail_request(host, mrq);
 
 		if (!host->ongoing_mrq)
@@ -211,10 +213,13 @@  void mmc_request_done(struct mmc_host *host, struct mmc_request *mrq)
 				mrq->stop->resp[0], mrq->stop->resp[1],
 				mrq->stop->resp[2], mrq->stop->resp[3]);
 		}
-
-		if (mrq->done)
-			mrq->done(mrq);
 	}
+	/*
+	 * Request starter must handle retries - see
+	 * mmc_wait_for_req_done().
+	 */
+	if (mrq->done)
+		mrq->done(mrq);
 }
 
 EXPORT_SYMBOL(mmc_request_done);