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| author | Jaehoon Chung <jh80.chung@samsung.com> | 2018-03-09 09:10:21 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-03-28 19:22:54 +0300 |
| commit | 8049c2c413da2fed46a49d367d8dd4ac819b4a92 (patch) | |
| tree | b3537714a327ed4218c285f51f47955f231ac314 /drivers/mmc | |
| parent | b4a2de90aeb6e56f81526cb3d7f87d16fc5788c8 (diff) | |
| download | linux-8049c2c413da2fed46a49d367d8dd4ac819b4a92.tar.xz | |
mmc: dw_mmc: exynos: fix the suspend/resume issue for exynos5433
commit e22842dd64bf86753d3f2b6ea474d73fc1e6ca24 upstream.
Before enabling the clock, dwmmc exynos driver is trying to access the
register. Then the kernel panic can be occurred.
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Tested-by: Chanwoo Choi <cw00.choi@samsung.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/dw_mmc-exynos.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c index fa41d9422d57..a84aa3f1ae85 100644 --- a/drivers/mmc/host/dw_mmc-exynos.c +++ b/drivers/mmc/host/dw_mmc-exynos.c @@ -165,9 +165,15 @@ static void dw_mci_exynos_set_clksel_timing(struct dw_mci *host, u32 timing) static int dw_mci_exynos_runtime_resume(struct device *dev) { struct dw_mci *host = dev_get_drvdata(dev); + int ret; + + ret = dw_mci_runtime_resume(dev); + if (ret) + return ret; dw_mci_exynos_config_smu(host); - return dw_mci_runtime_resume(dev); + + return ret; } /** |