Commit fcd156ee authored Apr 08, 2020 by Sathish Narasimman Committed by Marcel Holtmann Apr 08, 2020

Bluetooth: btusb: check for NULL in btusb_find_altsetting()



The new btusb_find_altsetting() dereferences it without checking
the check is added in this patch

Signed-off-by: Sathish Narasimman <sathish.narasimman@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

parent d1d900f8

drivers/bluetooth/btusb.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -1622,6 +1622,9 @@ static struct usb_host_interface btusb_find_altsetting(struct btusb_data data,

		BT_DBG("Looking for Alt no :%d", alt);

		if (!intf)
		return NULL;

		for (i = 0; i < intf->num_altsetting; i++) {
		if (intf->altsetting[i].desc.bAlternateSetting == alt)
		return &intf->altsetting[i];

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