From c1febac44856c9346bef939b9b0987ee8f0609e2 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Wed, 19 May 2021 14:47:17 +0200 Subject: [PATCH] net: hso: bail out on interrupt URB allocation failure commit 4d52ebc7ace491d58f96d1f4a1cb9070c506b2e7 upstream. Commit 31db0dbd7244 ("net: hso: check for allocation failure in hso_create_bulk_serial_device()") recently started returning an error when the driver fails to allocate resources for the interrupt endpoint and tiocmget functionality. For consistency let's bail out from probe also if the URB allocation fails. Signed-off-by: Johan Hovold Reviewed-by: Dan Carpenter Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/usb/hso.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c index 88f8778..fbfcbd0 100644 --- a/drivers/net/usb/hso.c +++ b/drivers/net/usb/hso.c @@ -2635,14 +2635,14 @@ static struct hso_device *hso_create_bulk_serial_device( } tiocmget->urb = usb_alloc_urb(0, GFP_KERNEL); - if (tiocmget->urb) { - mutex_init(&tiocmget->mutex); - init_waitqueue_head(&tiocmget->waitq); - } else - hso_free_tiomget(serial); - } - else + if (!tiocmget->urb) + goto exit; + + mutex_init(&tiocmget->mutex); + init_waitqueue_head(&tiocmget->waitq); + } else { num_urbs = 1; + } if (hso_serial_common_create(serial, num_urbs, BULK_URB_RX_SIZE, BULK_URB_TX_SIZE)) -- 2.7.4