3.2.70-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Grygorii Strashko <grygorii.stras...@linaro.org>
commit 184af16b09360d6273fd6160e6ff7f8e2482ef23 upstream.
The PM_RESTORE_PREPARE is not handled now in mmc_pm_notify(),
as result mmc_rescan() could be scheduled and executed at
late hibernation restore stages when MMC device is suspended
already - which, in turn, will lead to system crash on TI dra7-evm board:
WARNING: CPU: 0 PID: 3188 at drivers/bus/omap_l3_noc.c:148
l3_interrupt_handler+0x258/0x374()
44000000.ocp:L3 Custom Error: MASTER MPU TARGET L4_PER1_P3 (Idle): Data Access
in User mode during Functional access
Hence, add missed PM_RESTORE_PREPARE PM event in mmc_pm_notify().
Fixes: 4c2ef25fe0b8 (mmc: fix all hangs related to mmc/sd card...)
Signed-off-by: Grygorii Strashko <grygorii.stras...@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hans...@linaro.org>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <b...@decadent.org.uk>
---
drivers/mmc/core/core.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -2424,6 +2424,7 @@ int mmc_pm_notify(struct notifier_block
switch (mode) {
case PM_HIBERNATION_PREPARE:
case PM_SUSPEND_PREPARE:
+ case PM_RESTORE_PREPARE:
spin_lock_irqsave(&host->lock, flags);
host->rescan_disable = 1;
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
