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mmc: core: call pm_runtime_put_noidle in pm_runtime_get_sync failed case 

Even in failed case of pm_runtime_get_sync, the usage_count
is incremented. In order to keep the usage_count with correct
value and runtime power management to behave correctly, call
pm_runtime_put_noidle in such case.

Signed-off-by: Liu Chuansheng <chuansheng.liu@intel.com>
Signed-off-by: Li Fei <fei.li@intel.com>
Acked-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
hifive-unleashed-5.1
Li Fei 2013-04-08 09:36:39 +08:00 committed by Chris Ball
parent abd4190f0c
commit 3bffb800b9
2 changed files with 4 additions and 3 deletions
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4
drivers/mmc/core/sdio.c
View File

@ -861,8 +861,10 @@ static void mmc_sdio_detect(struct mmc_host *host)
/* Make sure card is powered before detecting it */
if (host->caps & MMC_CAP_POWER_OFF_CARD) {
err = pm_runtime_get_sync(&host->card->dev);
if (err < 0)
if (err < 0) {
pm_runtime_put_noidle(&host->card->dev);
goto out;
}
}
mmc_claim_host(host);

3
drivers/mmc/core/sdio_bus.c
View File

@ -138,7 +138,7 @@ static int sdio_bus_probe(struct device *dev)
if (func->card->host->caps & MMC_CAP_POWER_OFF_CARD) {
ret = pm_runtime_get_sync(dev);
if (ret < 0)
goto out;
goto disable_runtimepm;
}
/* Set the default block size so the driver is sure it's something
@ -158,7 +158,6 @@ static int sdio_bus_probe(struct device *dev)
disable_runtimepm:
if (func->card->host->caps & MMC_CAP_POWER_OFF_CARD)
pm_runtime_put_noidle(dev);
out:
return ret;
}