redonkable/alistair23-linux
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mmc: dw_mmc: exynos: fix the NULL pointer dereference error

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"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>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Jaehoon Chung 2016-06-20 13:16:09 +09:00 committed by Ulf Hansson
parent 65257a0dee
commit e5a613537c
1 changed files with 1 additions and 1 deletions
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2
drivers/mmc/host/dw_mmc-exynos.c
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@ -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);
}