diff mbox

mmc: dw_mmc: exynos: fix the NULL pointer dereference error

Message ID 1466396169-26703-1-git-send-email-jh80.chung@samsung.com (mailing list archive)
State New, archived
Headers show

Commit Message

Jaehoon Chung June 20, 2016, 4:16 a.m. UTC 
"host->cur_slot" should be assigned to start the request.
So it can be the NULL pointer. This patch fixed this error.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
---
 drivers/mmc/host/dw_mmc-exynos.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox

Patch

diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c
index 7e3a324..da0ef17 100644
--- a/drivers/mmc/host/dw_mmc-exynos.c
+++ b/drivers/mmc/host/dw_mmc-exynos.c
@@ -157,7 +157,7 @@  static void dw_mci_exynos_set_clksel_timing(struct dw_mci *host, u32 timing)
 	 * HOLD register should be bypassed in case there is no phase shift
 	 * applied on CMD/DATA that is sent to the card.
 	 */
-	if (!SDMMC_CLKSEL_GET_DRV_WD3(clksel))
+	if (!SDMMC_CLKSEL_GET_DRV_WD3(clksel) && host->cur_slot)
 		set_bit(DW_MMC_CARD_NO_USE_HOLD, &host->cur_slot->flags);
 }