[PATCH 1/7] mmc: core: rename "data" to saved_areq

From: Grant Grundler
Date: Thu Sep 26 2013 - 15:23:43 EST


Replace "data" with a more descriptive name.

Using a local variable (ie a register) makes explicit what the
compiler is doing under the covers anyway: the function is
dereferencing one pointer value the whole time.

Signed-off-by: Grant Grundler <grundler@xxxxxxxxxxxx>
---
drivers/mmc/core/core.c | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 006ead2..e5a40ee 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -529,14 +529,14 @@ struct mmc_async_req *mmc_start_req(struct mmc_host *host,
{
int err = 0;
int start_err = 0;
- struct mmc_async_req *data = host->areq;
+ struct mmc_async_req *saved_areq = host->areq;

/* Prepare a new request */
if (areq)
- mmc_pre_req(host, areq->mrq, !host->areq);
+ mmc_pre_req(host, areq->mrq, !saved_areq);

- if (host->areq) {
- err = mmc_wait_for_data_req_done(host, host->areq->mrq, areq);
+ if (saved_areq) {
+ err = mmc_wait_for_data_req_done(host, saved_areq->mrq, areq);
if (err == MMC_BLK_NEW_REQUEST) {
if (error)
*error = err;
@@ -550,17 +550,17 @@ struct mmc_async_req *mmc_start_req(struct mmc_host *host,
* Check BKOPS urgency for each R1 response
*/
if (host->card && mmc_card_mmc(host->card) &&
- ((mmc_resp_type(host->areq->mrq->cmd) == MMC_RSP_R1) ||
- (mmc_resp_type(host->areq->mrq->cmd) == MMC_RSP_R1B)) &&
- (host->areq->mrq->cmd->resp[0] & R1_EXCEPTION_EVENT))
+ ((mmc_resp_type(saved_areq->mrq->cmd) == MMC_RSP_R1) ||
+ (mmc_resp_type(saved_areq->mrq->cmd) == MMC_RSP_R1B)) &&
+ (saved_areq->mrq->cmd->resp[0] & R1_EXCEPTION_EVENT))
mmc_start_bkops(host->card, true);
}

if (!err && areq)
start_err = __mmc_start_data_req(host, areq->mrq);

- if (host->areq)
- mmc_post_req(host, host->areq->mrq, 0);
+ if (saved_areq)
+ mmc_post_req(host, saved_areq->mrq, 0);

/* Cancel a prepared request if it was not started. */
if ((err || start_err) && areq)
@@ -573,7 +573,7 @@ struct mmc_async_req *mmc_start_req(struct mmc_host *host,

if (error)
*error = err;
- return data;
+ return saved_areq;
}
EXPORT_SYMBOL(mmc_start_req);

--
1.8.4

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