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Commit 0136ee24 authored by Linux Build Service Account's avatar Linux Build Service Account Committed by Gerrit - the friendly Code Review server
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Merge "mmc: core: Increase the runtime PM reference count in try_claim_host"

parents 7ee506fb 26e54a44

drivers/mmc/core/core.c

+7 −0
Original line number Diff line number Diff line
@@ -2126,6 +2126,7 @@ int mmc_try_claim_host(struct mmc_host *host, unsigned int delay_ms) 
	int claimed_host = 0;

	unsigned long flags;

	int retry_cnt = delay_ms/10;

	bool pm = false;



	do {

		spin_lock_irqsave(&host->lock, flags);
@@ -2134,11 +2135,17 @@ int mmc_try_claim_host(struct mmc_host *host, unsigned int delay_ms) 
			host->claimer = current;

			host->claim_cnt += 1;

			claimed_host = 1;

			if (host->claim_cnt == 1)

				pm = true;

		}

		spin_unlock_irqrestore(&host->lock, flags);

		if (!claimed_host)

			mmc_delay(10);

	} while (!claimed_host && retry_cnt--);



	if (pm)

		pm_runtime_get_sync(mmc_dev(host));



	if (host->ops->enable && claimed_host && host->claim_cnt == 1)

		host->ops->enable(host);

	return claimed_host;