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usb: usbtest: fix NULL pointer dereference
If the usbtest driver encounters a device with an IN bulk endpoint but no OUT bulk endpoint, it will try to dereference a NULL pointer (out->desc.bEndpointAddress). The problem can be solved by adding a missing test. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Reported-by: Andrey Konovalov <andreyknvl@google.com> Tested-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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1 changed files with 3 additions and 2 deletions
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@ -202,12 +202,13 @@ get_endpoints(struct usbtest_dev *dev, struct usb_interface *intf)
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return tmp;
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}
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if (in) {
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if (in)
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dev->in_pipe = usb_rcvbulkpipe(udev,
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in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
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if (out)
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dev->out_pipe = usb_sndbulkpipe(udev,
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out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
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}
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if (iso_in) {
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dev->iso_in = &iso_in->desc;
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dev->in_iso_pipe = usb_rcvisocpipe(udev,
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