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Commit 2986d0bf authored by Pierre Ossman's avatar Pierre Ossman
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mmc: Don't hold lock when releasing an added card



When the card has been added to the device model, it might be bound
to a card driver. Therefore, we have to release the host lock when
trying to remove it as we otherwise might deadlock with the driver.

Signed-off-by: default avatarPierre Ossman <drzeus@drzeus.cx>
parent cf795bfb
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+8 −5
Original line number Diff line number Diff line
@@ -499,14 +499,17 @@ static void mmc_resume(struct mmc_host *host)
	BUG_ON(!host->card);

	mmc_claim_host(host);

	err = mmc_init_card(host, host->ocr, host->card);
	mmc_release_host(host);

	if (err != MMC_ERR_NONE) {
		mmc_remove(host);

		mmc_claim_host(host);
		mmc_detach_bus(host);
		mmc_release_host(host);
	}

	mmc_release_host(host);
}

#else
@@ -567,14 +570,14 @@ int mmc_attach_mmc(struct mmc_host *host, u32 ocr)

	err = mmc_add_card(host->card);
	if (err)
		goto reclaim_host;
		goto remove_card;

	return 0;

reclaim_host:
	mmc_claim_host(host);
remove_card:
	mmc_remove_card(host->card);
	host->card = NULL;
	mmc_claim_host(host);
err:
	mmc_detach_bus(host);
	mmc_release_host(host);
+8 −5
Original line number Diff line number Diff line
@@ -573,14 +573,17 @@ static void mmc_sd_resume(struct mmc_host *host)
	BUG_ON(!host->card);

	mmc_claim_host(host);

	err = mmc_sd_init_card(host, host->ocr, host->card);
	mmc_release_host(host);

	if (err != MMC_ERR_NONE) {
		mmc_sd_remove(host);

		mmc_claim_host(host);
		mmc_detach_bus(host);
		mmc_release_host(host);
	}

	mmc_release_host(host);
}

#else
@@ -648,14 +651,14 @@ int mmc_attach_sd(struct mmc_host *host, u32 ocr)

	err = mmc_add_card(host->card);
	if (err)
		goto reclaim_host;
		goto remove_card;

	return 0;

reclaim_host:
	mmc_claim_host(host);
remove_card:
	mmc_remove_card(host->card);
	host->card = NULL;
	mmc_claim_host(host);
err:
	mmc_detach_bus(host);
	mmc_release_host(host);