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mmc: propagate power save/restore ops return value

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Allow power save/restore and their relevant mmc_bus_ops handlers
exit with a return value.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Tested-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Ohad Ben-Cohen
2010-10-02 13:54:06 +02:00
committed by Chris Ball
parent 9b966aae64
commit 12ae637f08
5 changed files with 30 additions and 14 deletions
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20
drivers/mmc/core/core.c
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@@ -1583,37 +1583,45 @@ void mmc_stop_host(struct mmc_host *host)
mmc_power_off(host);
}
void mmc_power_save_host(struct mmc_host *host)
int mmc_power_save_host(struct mmc_host *host)
{
int ret = 0;
mmc_bus_get(host);
if (!host->bus_ops || host->bus_dead || !host->bus_ops->power_restore) {
mmc_bus_put(host);
return;
return -EINVAL;
}
if (host->bus_ops->power_save)
host->bus_ops->power_save(host);
ret = host->bus_ops->power_save(host);
mmc_bus_put(host);
mmc_power_off(host);
return ret;
}
EXPORT_SYMBOL(mmc_power_save_host);
void mmc_power_restore_host(struct mmc_host *host)
int mmc_power_restore_host(struct mmc_host *host)
{
int ret;
mmc_bus_get(host);
if (!host->bus_ops || host->bus_dead || !host->bus_ops->power_restore) {
mmc_bus_put(host);
return;
return -EINVAL;
}
mmc_power_up(host);
host->bus_ops->power_restore(host);
ret = host->bus_ops->power_restore(host);
mmc_bus_put(host);
return ret;
}
EXPORT_SYMBOL(mmc_power_restore_host);