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| author | Pierre Ossman <drzeus@drzeus.cx> | 2007-07-11 20:28:02 +0200 |
|---|---|---|
| committer | Pierre Ossman <drzeus@drzeus.cx> | 2007-07-26 01:53:48 +0200 |
| commit | cf795bfb3ad4e2f8f6bb346aa8edb8272d4c70a2 (patch) | |
| tree | ccba2e6023d9f6da894d68ac21a06188e79495d6 /drivers/mmc/core | |
| parent | mmc: update kerneldoc (diff) | |
| download | linux-cf795bfb3ad4e2f8f6bb346aa8edb8272d4c70a2.tar.xz linux-cf795bfb3ad4e2f8f6bb346aa8edb8272d4c70a2.zip | |
mmc: add a might_sleep() to mmc_claim_host()
In the normal case, the host lock can be claimed directly.
When it cannot, the caller will sleep. Make sure we don't
have any latent bugs by always calling might_sleep().
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Diffstat (limited to 'drivers/mmc/core')
| -rw-r--r-- | drivers/mmc/core/core.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index e08aa352bd50..3208890b10b3 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -260,6 +260,8 @@ void mmc_claim_host(struct mmc_host *host) DECLARE_WAITQUEUE(wait, current); unsigned long flags; + might_sleep(); + add_wait_queue(&host->wq, &wait); spin_lock_irqsave(&host->lock, flags); while (1) { |