From: Alexey Starikovskiy <astarikovskiy@suse.de>
Date: Fri, 10 Aug 2007 20:45:18 +0000 (-0700)
Subject: ACPI EC: remove potential deadlock from EC
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=199e9e7d1106686a85ee9fdf6a824051aa82682e;p=deliverable%2Flinux.git

ACPI EC: remove potential deadlock from EC

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
---

diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index b28b56524f0b..2300d81bbc4e 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -710,9 +710,7 @@ static int acpi_ec_add(struct acpi_device *device)
 	/* Check if we found the boot EC */
 	if (boot_ec) {
 		if (boot_ec->gpe == ec->gpe) {
-			mutex_lock(&boot_ec->lock);
 			ec_remove_handlers(boot_ec);
-			mutex_unlock(&boot_ec->lock);
 			mutex_destroy(&boot_ec->lock);
 			kfree(boot_ec);
 			first_ec = boot_ec = NULL;