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

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
...@@ -483,8 +483,10 @@ static int __devexit sdhci_s3c_remove(struct platform_device *pdev) ...@@ -483,8 +483,10 @@ static int __devexit sdhci_s3c_remove(struct platform_device *pdev)
sdhci_remove_host(host, 1); sdhci_remove_host(host, 1);
for (ptr = 0; ptr < 3; ptr++) { for (ptr = 0; ptr < 3; ptr++) {
clk_disable(sc->clk_bus[ptr]); if (sc->clk_bus[ptr]) {
clk_put(sc->clk_bus[ptr]); clk_disable(sc->clk_bus[ptr]);
clk_put(sc->clk_bus[ptr]);
}
} }
clk_disable(sc->clk_io); clk_disable(sc->clk_io);
clk_put(sc->clk_io); clk_put(sc->clk_io);
......
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