[PATCH] ACPI:remove panic in case hardware has changed after S4

[oliver@neukum.org]

From: Oliver Neukum <oneukum@suse.de>

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.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
---
 drivers/acpi/sleep.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 9c1a435..14744e5 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -664,11 +664,9 @@ 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)
+		printk(KERN_CRIT "ACPI: Hardware changed while hibernated, "
+			"success doubtful!\n");
 	/* Restore the NVS memory area */
 	suspend_nvs_restore();
 	/* Allow EC transactions to happen. */
-- 
1.8.1.4