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USB: composite: Fix bug: should test set_alt function pointer before use it 

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>
hifive-unleashed-5.1
Bryan Wu 2009-01-08 00:21:18 +08:00 committed by Greg Kroah-Hartman
parent cd67435ef9
commit dd4dff8b03
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/gadget/composite.c
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@ -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->get_alt)
if (w_value && !f->set_alt)
break;
value = f->set_alt(f, w_index, w_value);
break;