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authorBalaji T K <balajitk@ti.com>2012-10-15 20:05:08 +0400
committerChris Ball <cjb@laptop.org>2012-11-08 00:01:54 +0400
commit9ea28ecbeb090159a3383ff60b29dee00c489774 (patch)
tree292d044d8c4f1fe9a7464b685debea36ceaf7e27 /drivers
parent9d1f02864408c20dbbfaa661231c7afb5a8fc028 (diff)
downloadlinux-9ea28ecbeb090159a3383ff60b29dee00c489774.tar.xz
mmc: omap_hsmmc: fix NULL pointer dereference for dt boot
dev->platform_data is NULL in case of device tree boot, instead use the saved version in struct omap_hsmmc_host. Signed-off-by: Balaji T K <balajitk@ti.com> Signed-off-by: Venkatraman S <svenkatr@ti.com> Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/mmc/host/omap_hsmmc.c17
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index d5057415d7d9..fedd258cc4ea 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -178,7 +178,8 @@ struct omap_hsmmc_host {
static int omap_hsmmc_card_detect(struct device *dev, int slot)
{
- struct omap_mmc_platform_data *mmc = dev->platform_data;
+ struct omap_hsmmc_host *host = dev_get_drvdata(dev);
+ struct omap_mmc_platform_data *mmc = host->pdata;
/* NOTE: assumes card detect signal is active-low */
return !gpio_get_value_cansleep(mmc->slots[0].switch_pin);
@@ -186,7 +187,8 @@ static int omap_hsmmc_card_detect(struct device *dev, int slot)
static int omap_hsmmc_get_wp(struct device *dev, int slot)
{
- struct omap_mmc_platform_data *mmc = dev->platform_data;
+ struct omap_hsmmc_host *host = dev_get_drvdata(dev);
+ struct omap_mmc_platform_data *mmc = host->pdata;
/* NOTE: assumes write protect signal is active-high */
return gpio_get_value_cansleep(mmc->slots[0].gpio_wp);
@@ -194,7 +196,8 @@ static int omap_hsmmc_get_wp(struct device *dev, int slot)
static int omap_hsmmc_get_cover_state(struct device *dev, int slot)
{
- struct omap_mmc_platform_data *mmc = dev->platform_data;
+ struct omap_hsmmc_host *host = dev_get_drvdata(dev);
+ struct omap_mmc_platform_data *mmc = host->pdata;
/* NOTE: assumes card detect signal is active-low */
return !gpio_get_value_cansleep(mmc->slots[0].switch_pin);
@@ -204,7 +207,8 @@ static int omap_hsmmc_get_cover_state(struct device *dev, int slot)
static int omap_hsmmc_suspend_cdirq(struct device *dev, int slot)
{
- struct omap_mmc_platform_data *mmc = dev->platform_data;
+ struct omap_hsmmc_host *host = dev_get_drvdata(dev);
+ struct omap_mmc_platform_data *mmc = host->pdata;
disable_irq(mmc->slots[0].card_detect_irq);
return 0;
@@ -212,7 +216,8 @@ static int omap_hsmmc_suspend_cdirq(struct device *dev, int slot)
static int omap_hsmmc_resume_cdirq(struct device *dev, int slot)
{
- struct omap_mmc_platform_data *mmc = dev->platform_data;
+ struct omap_hsmmc_host *host = dev_get_drvdata(dev);
+ struct omap_mmc_platform_data *mmc = host->pdata;
enable_irq(mmc->slots[0].card_detect_irq);
return 0;
@@ -2009,9 +2014,9 @@ static int __devexit omap_hsmmc_remove(struct platform_device *pdev)
clk_put(host->dbclk);
}
+ omap_hsmmc_gpio_free(host->pdata);
iounmap(host->base);
mmc_free_host(host->mmc);
- omap_hsmmc_gpio_free(pdev->dev.platform_data);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (res)