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USB: fix possible null deref in init_usb_class()
author
Dan Carpenter
<error27@gmail.com>
Tue, 10 Nov 2009 09:02:08 +0000
(11:02 +0200)
committer
Greg Kroah-Hartman
<gregkh@suse.de>
Fri, 11 Dec 2009 19:55:22 +0000
(11:55 -0800)
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>
drivers/usb/core/file.c
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diff --git
a/drivers/usb/core/file.c
b/drivers/usb/core/file.c
index
222ee07
..
bfc6c2e
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;