USB: fix possible null deref in init_usb_class()

Add a missing goto.  We dereference usb_class on the next line.

Found by smatch static checker.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/core/file.c b/drivers/usb/core/file.c
index 222ee07ea680f303d9ce0d5b94daaeaa9aa22c1d..bfc6c2eea6471d87bdf77455e4e4d8ca3e160ca1 100644 (file)
--- a/drivers/usb/core/file.c
+++ b/drivers/usb/core/file.c
@@ -99,6 +99,7 @@ static int init_usb_class(void)
                printk(KERN_ERR "class_create failed for usb devices\n");
                kfree(usb_class);
                usb_class = NULL;
+               goto exit;
        }
        usb_class->class->devnode = usb_devnode;