uio: make symbol 'uio_class_registered' static

Fixes the following sparse warning:

drivers/uio/uio.c:277:6: warning:
 symbol 'uio_class_registered' was not declared. Should it be static?

Fixes: ae61cf5b9913 ("uio: ensure class is registered before devices")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index e601bd3fbae1fa925c047b21f789716e46c86a32..85644669fbe7b013b59b24adff5fd466230a102b 100644 (file)
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -274,7 +274,7 @@ static struct class uio_class = {
        .dev_groups = uio_groups,
 };
 
-bool uio_class_registered;
+static bool uio_class_registered;
 
 /*
  * device functions