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USB: composite: Fix bug: should test set_alt function pointer before use it
author
Bryan Wu
<cooloney@kernel.org>
Wed, 7 Jan 2009 16:21:18 +0000
(
00:21
+0800)
committer
Greg Kroah-Hartman
<gregkh@kvm.kroah.org>
Wed, 28 Jan 2009 00:15:35 +0000
(16:15 -0800)
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/usb/gadget/composite.c
patch
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blob
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diff --git
a/drivers/usb/gadget/composite.c
b/drivers/usb/gadget/composite.c
index
f2da026
..
363951e
100644
(file)
--- a/
drivers/usb/gadget/composite.c
+++ b/
drivers/usb/gadget/composite.c
@@
-772,7
+772,7
@@
composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
f = cdev->config->interface[w_index];
if (!f)
break;
- if (w_value && !f->
g
et_alt)
+ if (w_value && !f->
s
et_alt)
break;
value = f->set_alt(f, w_index, w_value);
break;