NFC: pn533: Fix wrong GFP flag usage

pn533_recv_response() is an urb completion handler, so it must use
GFP_ATOMIC. pn533_usb_send_frame() OTOH runs from a regular sleeping
context, so the pn533_submit_urb_for_response() there (and only there)
can use the regular GFP_KERNEL flags.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1514134
Fixes: 9815c7cf22 ("NFC: pn533: Separate physical layer from ...")
Cc: Michael Thalmeier <michael.thalmeier@hale.at>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Hans de Goede 2018-06-07 15:54:48 +02:00 коммит произвёл Greg Kroah-Hartman
Родитель 4a762569a2
Коммит ecc443c03f
1 изменённых файлов: 2 добавлений и 2 удалений

Просмотреть файл

@ -74,7 +74,7 @@ static void pn533_recv_response(struct urb *urb)
struct sk_buff *skb = NULL; struct sk_buff *skb = NULL;
if (!urb->status) { if (!urb->status) {
skb = alloc_skb(urb->actual_length, GFP_KERNEL); skb = alloc_skb(urb->actual_length, GFP_ATOMIC);
if (!skb) { if (!skb) {
nfc_err(&phy->udev->dev, "failed to alloc memory\n"); nfc_err(&phy->udev->dev, "failed to alloc memory\n");
} else { } else {
@ -186,7 +186,7 @@ static int pn533_usb_send_frame(struct pn533 *dev,
if (dev->protocol_type == PN533_PROTO_REQ_RESP) { if (dev->protocol_type == PN533_PROTO_REQ_RESP) {
/* request for response for sent packet directly */ /* request for response for sent packet directly */
rc = pn533_submit_urb_for_response(phy, GFP_ATOMIC); rc = pn533_submit_urb_for_response(phy, GFP_KERNEL);
if (rc) if (rc)
goto error; goto error;
} else if (dev->protocol_type == PN533_PROTO_REQ_ACK_RESP) { } else if (dev->protocol_type == PN533_PROTO_REQ_ACK_RESP) {