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Commit 9320f7cb authored by Marek Szyprowski's avatar Marek Szyprowski Committed by Chris Ball
Browse files

mmc: sdhci-s3c: fix NULL ptr access in sdhci_s3c_remove 



If not all clocks have been defined in platform data, the driver will
cause a null pointer dereference when it is removed. This patch fixes
this issue.

Signed-off-by: default avatarMarek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: default avatarKyungmin Park <kyungmin.park@samsung.com>
Cc: <stable@kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarChris Ball <cjb@laptop.org>
parent 06fe577f

drivers/mmc/host/sdhci-s3c.c

+4 −2
Original line number Diff line number Diff line
@@ -483,9 +483,11 @@ static int __devexit sdhci_s3c_remove(struct platform_device *pdev) 
	sdhci_remove_host(host, 1);



	for (ptr = 0; ptr < 3; ptr++) {

		if (sc->clk_bus[ptr]) {

			clk_disable(sc->clk_bus[ptr]);

			clk_put(sc->clk_bus[ptr]);

		}

	}

	clk_disable(sc->clk_io);

	clk_put(sc->clk_io);