sdhci-s3c: add missing remove function

System will crash sooner or later once the memory with the code of the
s3c-sdhci.ko module is reused for something else. I really have no idea
how the lack of remove function went unnoticed into the mainline code.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 20 insertions, 0 deletions

diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
index af217924a76e..ad30f074ee15 100644
--- a/drivers/mmc/host/sdhci-s3c.c
+++ b/drivers/mmc/host/sdhci-s3c.c
@@ -365,6 +365,26 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev)
 
 static int __devexit sdhci_s3c_remove(struct platform_device *pdev)
 {
+        struct sdhci_host *host =  platform_get_drvdata(pdev);
+        struct sdhci_s3c *sc = sdhci_priv(host);
+        int ptr;
+
+        sdhci_remove_host(host, 1);
+
+        for (ptr = 0; ptr < 3; ptr++) {
+                clk_disable(sc->clk_bus[ptr]);
+                clk_put(sc->clk_bus[ptr]);
+        }
+        clk_disable(sc->clk_io);
+        clk_put(sc->clk_io);
+
+        iounmap(host->ioaddr);
+        release_resource(sc->ioarea);
+        kfree(sc->ioarea);
+
+        sdhci_free_host(host);
+        platform_set_drvdata(pdev, NULL);
+
         return 0;
 }