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Commit ca4de53c authored by Michael Trimarchi's avatar Michael Trimarchi Committed by Felipe Balbi
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usb: gadget: f_uac1: check return code from config_ep_by_speed 



Not checking config_ep_by_speed could lead to a kernel
NULL pointer dereference error in usb_ep_enable

Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: default avatarMichael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 49a79d8b

drivers/usb/gadget/function/f_uac1.c

+4 −1
Original line number Diff line number Diff line
@@ -588,7 +588,10 @@ static int f_audio_set_alt(struct usb_function *f, unsigned intf, unsigned alt) 


	if (intf == 1) {

		if (alt == 1) {

			config_ep_by_speed(cdev->gadget, f, out_ep);

			err = config_ep_by_speed(cdev->gadget, f, out_ep);

			if (err)

				return err;



			usb_ep_enable(out_ep);

			out_ep->driver_data = audio;

			audio->copy_buf = f_audio_buffer_alloc(audio_buf_size);