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mmc: sdhci: Clear pointers when a request finishes 

Several pointers are used to identify when interrupts are expected. Namely,
host->cmd, host->data_cmd and host->data. Ensure those are cleared when
a request finishes. That tidies the case when a request is errored out
before normal processing has completed, ensuring any interrupts that occur
subsequently are not acted upon.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Adrian Hunter 2016-06-29 16:24:30 +03:00 committed by Ulf Hansson
parent ed1563de0b
commit 5a8a3fef26
1 changed files with 9 additions and 3 deletions
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12
drivers/mmc/host/sdhci.c
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@ -935,6 +935,15 @@ static bool sdhci_needs_reset(struct sdhci_host *host, struct mmc_request *mrq)
static void sdhci_finish_mrq(struct sdhci_host *host, struct mmc_request *mrq)
{
if (host->cmd && host->cmd->mrq == mrq)
host->cmd = NULL;
if (host->data_cmd && host->data_cmd->mrq == mrq)
host->data_cmd = NULL;
if (host->data && host->data->mrq == mrq)
host->data = NULL;
if (sdhci_needs_reset(host, mrq))
host->pending_reset = true;
@ -2240,9 +2249,6 @@ static void sdhci_tasklet_finish(unsigned long param)
}
host->mrq = NULL;
host->cmd = NULL;
host->data = NULL;
host->data_cmd = NULL;
sdhci_led_deactivate(host);