From: Alexey Starikovskiy <[EMAIL PROTECTED]>

Signed-off-by: Alexey Starikovskiy <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
---

 drivers/acpi/ec.c |    2 --
 1 files changed, 2 deletions(-)

diff -puN drivers/acpi/ec.c~acpi-ec-remove-potential-deadlock-from-ec 
drivers/acpi/ec.c
--- a/drivers/acpi/ec.c~acpi-ec-remove-potential-deadlock-from-ec
+++ a/drivers/acpi/ec.c
@@ -710,9 +710,7 @@ static int acpi_ec_add(struct acpi_devic
        /* 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;
_
-
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