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>
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index d5057415..fedd258 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -178,7 +178,8 @@
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_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_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_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_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 @@
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)