USB: opticon: fix non-atomic allocation in write path



Write may be called from interrupt context so make sure to use
GFP_ATOMIC for all allocations in write.

Fixes: 0d930e51 ("USB: opticon: Add Opticon OPN2001 write support")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>

parent 19125283

drivers/usb/serial/opticon.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -215,7 +215,7 @@ static int opticon_write(struct tty_struct tty, struct usb_serial_port port,

		/* The connected devices do not have a bulk write endpoint,
		* to transmit data to de barcode device the control endpoint is used */
		dr = kmalloc(sizeof(struct usb_ctrlrequest), GFP_NOIO);
		dr = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC);
		if (!dr) {
		count = -ENOMEM;
		goto error_no_dr;