linux-kernel - [PATCH] media: lmedm04: Use GFP_KERNEL for URB allocation/submission.

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Message-ID: <d6a1c5ab-d125-72b6-a6c8-538292fc0685@gmail.com>
Date:   Sat, 3 Oct 2020 10:32:43 +0100
From:   Malcolm Priestley <tvboxspy@...il.com>
To:     linux-media <linux-media@...r.kernel.org>
Cc:     Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        Joe Perches <joe@...ches.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH] media: lmedm04: Use GFP_KERNEL for URB allocation/submission.


lme2510_int_read is not atomically called so use GFP_KERNEL for
usb_alloc_urb and usb_submit_urb which is the first in the chain
of interrupt submissions.

Signed-off-by: Malcolm Priestley <tvboxspy@...il.com>
---
This patch is applied on top of
[likely] media: lmedm04: Fix misuse of comma 

I have tested both patches with hardware and all is well.

 drivers/media/usb/dvb-usb-v2/lmedm04.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/usb/dvb-usb-v2/lmedm04.c b/drivers/media/usb/dvb-usb-v2/lmedm04.c
index 9ddda8d68ee0..0f5a1eed5ea9 100644
--- a/drivers/media/usb/dvb-usb-v2/lmedm04.c
+++ b/drivers/media/usb/dvb-usb-v2/lmedm04.c
@@ -373,7 +373,7 @@ static int lme2510_int_read(struct dvb_usb_adapter *adap)
 	struct lme2510_state *lme_int = adap_to_priv(adap);
 	struct usb_host_endpoint *ep;
 
-	lme_int->lme_urb = usb_alloc_urb(0, GFP_ATOMIC);
+	lme_int->lme_urb = usb_alloc_urb(0, GFP_KERNEL);
 
 	if (lme_int->lme_urb == NULL)
 			return -ENOMEM;
@@ -393,7 +393,7 @@ static int lme2510_int_read(struct dvb_usb_adapter *adap)
 	if (usb_endpoint_type(&ep->desc) == USB_ENDPOINT_XFER_BULK)
 		lme_int->lme_urb->pipe = usb_rcvbulkpipe(d->udev, 0xa);
 
-	usb_submit_urb(lme_int->lme_urb, GFP_ATOMIC);
+	usb_submit_urb(lme_int->lme_urb, GFP_KERNEL);
 	info("INT Interrupt Service Started");
 
 	return 0;
-- 
2.27.0