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| author | Ulf Hansson <ulf.hansson@linaro.org> | 2013-07-02 12:53:01 +0200 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2013-07-05 12:51:22 -0400 |
| commit | 203bb5af65d4edaf600d75130438c0c512b05986 (patch) | |
| tree | 0018cc56c55b591d5ace6f2274d4b6bd3457c6b5 /drivers/mmc | |
| parent | 30d025c0f7234409e8ee1bf22d1729055e640ec6 (diff) | |
| download | linux-203bb5af65d4edaf600d75130438c0c512b05986.tar.gz linux-203bb5af65d4edaf600d75130438c0c512b05986.tar.bz2 linux-203bb5af65d4edaf600d75130438c0c512b05986.zip | |
mmc: core: Fixup Oops for SDIO shutdown
Commit "mmc: core: Handle card shutdown from mmc_bus" introduced an
Oops in the shutdown sequence for SDIO.
The drv pointer, does not exist for SDIO since the probing of the SDIO
card from the mmc_bus perspective is expected to fail by returning
-ENODEV.
This patch adds the proper check for the pointer before calling it.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reported-by: Stephen Warren <swarren@wwwdotorg.org>
Reported-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Tested-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/core/bus.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c index 4c0decfffb53..d4b99bbe0781 100644 --- a/drivers/mmc/core/bus.c +++ b/drivers/mmc/core/bus.c @@ -129,7 +129,8 @@ static void mmc_bus_shutdown(struct device *dev) struct mmc_host *host = card->host; int ret; - drv->shutdown(card); + if (dev->driver && drv->shutdown) + drv->shutdown(card); if (host->bus_ops->shutdown) { ret = host->bus_ops->shutdown(host); |