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usb: gadget: pxa27x: Test for a valid argument pointer

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A call usb_put_phy(udc->transceiver) must be tested for a valid pointer.
Use an already existing test for usb_unregister_notifier call.

Acked-by: Robert Jarzmik <[email protected]>
Reported-by: Robert Jarzmik <[email protected]>
Signed-off-by: Petr Cvek <[email protected]>
Signed-off-by: Felipe Balbi <[email protected]>
This commit is contained in:
Petr Cvek 2017-02-24 02:54:56 +01:00 • committed by Felipe Balbi
commit df7545719a
1 changed files with 3 additions and 2 deletions
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5
drivers/usb/gadget/udc/pxa27x_udc.c
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@ -2534,9 +2534,10 @@ static int pxa_udc_remove(struct platform_device *_dev)
usb_del_gadget_udc(&udc->gadget);
pxa_cleanup_debugfs(udc);
if (!IS_ERR_OR_NULL(udc->transceiver))
if (!IS_ERR_OR_NULL(udc->transceiver)) {
usb_unregister_notifier(udc->transceiver, &pxa27x_udc_phy);
usb_put_phy(udc->transceiver);
usb_put_phy(udc->transceiver);
}
udc->transceiver = NULL;
the_controller = NULL;