Commit cf795bfb authored by Pierre Ossman's avatar Pierre Ossman
Browse files

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: default avatarPierre Ossman <drzeus@drzeus.cx>
parent 67a61c48

drivers/mmc/core/core.c

+2 −0
Original line number Diff line number Diff line
@@ -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) {