[PATCH 03/16] mmc: core: refactor mmc_request_done()

Linus Walleij
2017-02-09T15:41:03Z

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.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
drivers/mmc/core/core.c | 27 ++++++++++++++++-----------
1 file changed, 16 insertions(+), 11 deletions(-)

diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index b2e7a6dfcbf0..8dbed198750f 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);
--
2.9.3