ACPI: EC: acpi_ec_remove(): fix use-after-free

This patch fixes an obvious use-after-free introduced by
commit 837012ede14a8fc088be3682c964da7fc6af026b.

Spotted by the Coverity checker.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 71caa7d983a3..b649ac7122a5 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -730,14 +730,14 @@ static int acpi_ec_add(struct acpi_device *device)
 static int acpi_ec_remove(struct acpi_device *device, int type)
 {
         struct acpi_ec *ec;
-        struct acpi_ec_query_handler *handler;
+        struct acpi_ec_query_handler *handler, *tmp;
 
         if (!device)
                 return -EINVAL;
 
         ec = acpi_driver_data(device);
         mutex_lock(&ec->lock);
-        list_for_each_entry(handler, &ec->list, node) {
+        list_for_each_entry_safe(handler, tmp, &ec->list, node) {
                 list_del(&handler->node);
                 kfree(handler);
         }