aboutsummaryrefslogtreecommitdiff
path: root/drivers/acpi
diff options
context:
space:
mode:
authorRafael J. Wysocki <rjw@sisk.pl>2011-01-19 22:27:55 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2011-01-20 18:30:17 -0800
commitd551d81d6a720542873f478def60baab6b5df403 (patch)
tree0abdbd457d8d92ced99048a84b92a067b08d4652 /drivers/acpi
parent2d6d9fd3a54a28c6f67f26eb6c74803307a1b11e (diff)
downloadlinux-linaro-android-d551d81d6a720542873f478def60baab6b5df403.tar.gz
ACPI / PM: Call suspend_nvs_free() earlier during resume
It turns out that some device drivers map pages from the ACPI NVS region during resume using ioremap(), which conflicts with ioremap_cache() used for mapping those pages by the NVS save/restore code in nvs.c. Make the NVS pages mapped by the code in nvs.c be unmapped before device drivers' resume routines run. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/sleep.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index fdd3aeeb6de..d6a8cd14de2 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -166,6 +166,7 @@ static void acpi_pm_finish(void)
u32 acpi_state = acpi_target_sleep_state;
acpi_ec_unblock_transactions();
+ suspend_nvs_free();
if (acpi_state == ACPI_STATE_S0)
return;
@@ -186,7 +187,6 @@ static void acpi_pm_finish(void)
*/
static void acpi_pm_end(void)
{
- suspend_nvs_free();
/*
* This is necessary in case acpi_pm_finish() is not called during a
* failing transition to a sleep state.