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authorOliver Neukum <oneukum@suse.de>2014-01-10 10:51:53 +0100
committerJiri Slaby <jslaby@suse.cz>2014-05-05 14:21:49 +0200
commit43c5512d313281d04a91531aa205fac9aa2995a2 (patch)
treee3c12d0f34de558aa9d850c39ef6a287573beecd
parent1e37176ee50aba87e7c4a31bcd588d04706fea03 (diff)
ACPI / sleep: remove panic in case hardware has changed after S4
commit 5c551e624abba6782034edd5b9eb58ac6f146b38 upstream. Some BIOSes change hardware based on the state of a laptop's lid. If the lid is closed, the touchpad is disabled and the checksum changes. Windows 8 no longer aborts resume if the checksum has changed. Signed-off-by: Oliver Neukum <oneukum@suse.de> [rjw: Use pr_crit() for the message and don't break the string] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-rw-r--r--drivers/acpi/sleep.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 99e5158456d..c09e6f646fe 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -675,11 +675,8 @@ static void acpi_hibernation_leave(void)
/* Reprogram control registers */
acpi_leave_sleep_state_prep(ACPI_STATE_S4);
/* Check the hardware signature */
- if (facs && s4_hardware_signature != facs->hardware_signature) {
- printk(KERN_EMERG "ACPI: Hardware changed while hibernated, "
- "cannot resume!\n");
- panic("ACPI S4 hardware signature mismatch");
- }
+ if (facs && s4_hardware_signature != facs->hardware_signature)
+ pr_crit("ACPI: Hardware changed while hibernated, success doubtful!\n");
/* Restore the NVS memory area */
suspend_nvs_restore();
/* Allow EC transactions to happen. */