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>

1 files changed, 0 insertions, 2 deletions

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;