HID: fix reference count leak hidraw

The hidraw subsystem has a bug that prevents the close syscall from ever
reaching the low level driver, leading to a resource leak. Fix by replacing
postdecrement with predecrement.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
index 7685ae6808c4..96ec1bacbbf3 100644
--- a/drivers/hid/hidraw.c
+++ b/drivers/hid/hidraw.c
@@ -208,7 +208,7 @@ static int hidraw_release(struct inode * inode, struct file * file)
 
         list_del(&list->node);
         dev = hidraw_table[minor];
-        if (!dev->open--) {
+        if (!--dev->open) {
                 if (list->hidraw->exist)
                         dev->hid->ll_driver->close(dev->hid);
                 else