mmc: add a might_sleep() to mmc_claim_host() · cf795bfb3a - Gogs

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>

Pierre Ossman 18 years ago

parent

67a61c4847

commit

cf795bfb3a

1 changed files with 2 additions and 0 deletions

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							+ 2
							
							- 0
						
drivers/mmc/core/core.c
							 
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				@@ -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) {