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Patch "mmc: dw_mmc: exynos: fix the suspend/resume issue for exynos5433" has been added to the 4.15-stable tree

PATCH [email protected] 1 participant 1 message Mar 24, 2018

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This is a note to let you know that I've just added the patch titled

mmc: dw_mmc: exynos: fix the suspend/resume issue for exynos5433

to the 4.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
mmc-dw_mmc-exynos-fix-the-suspend-resume-issue-for-exynos5433.patch
and it can be found in the queue-4.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

Quoted 1 line

From e22842dd64bf86753d3f2b6ea474d73fc1e6ca24 Mon Sep 17 00:00:00 2001

From: Jaehoon Chung <[email protected]>
Date: Fri, 9 Mar 2018 15:10:21 +0900
Subject: mmc: dw_mmc: exynos: fix the suspend/resume issue for exynos5433

From: Jaehoon Chung <[email protected]>

commit e22842dd64bf86753d3f2b6ea474d73fc1e6ca24 upstream.

Before enabling the clock, dwmmc exynos driver is trying to access the register. Then the kernel panic can be occurred.

---
 drivers/mmc/host/dw_mmc-exynos.c |    8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)
drivers/mmc/host/dw_mmc-exynos.c +7 -1
@@ -165,9 +165,15 @@ static void dw_mci_exynos_set_clksel_tim
 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;
 }
 
 /**

Patches currently in stable-queue which might be from [email protected] are

queue-4.15/mmc-dw_mmc-fix-the-dto-cto-timeout-overflow-calculation-for-32-bit-systems.patch queue-4.15/mmc-dw_mmc-exynos-fix-the-suspend-resume-issue-for-exynos5433.patch queue-4.15/mmc-dw_mmc-fix-falling-from-idmac-to-pio-mode-when-dw_mci_reset-occurs.patch