diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2018-06-07 15:54:48 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-08-24 13:12:32 +0200 |
| commit | 5113cb753af23b4d0e89004ccf1cda3446bf6ac3 (patch) | |
| tree | 0f4713eda1d939bf5d64a8dfc2263193fca05099 /drivers/nfc | |
| parent | d5ff711a000e2682ce4beed95daaa5256a0991b2 (diff) | |
NFC: pn533: Fix wrong GFP flag usage
[ Upstream commit ecc443c03fb14abfb8a6af5e3b2d43b5257e60f2 ]
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: 9815c7cf22da ("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>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/nfc')
| -rw-r--r-- | drivers/nfc/pn533/usb.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/nfc/pn533/usb.c b/drivers/nfc/pn533/usb.c index 33ed78be2750..3a897f57cac5 100644 --- a/drivers/nfc/pn533/usb.c +++ b/drivers/nfc/pn533/usb.c @@ -71,7 +71,7 @@ static void pn533_recv_response(struct urb *urb) struct sk_buff *skb = NULL; if (!urb->status) { - skb = alloc_skb(urb->actual_length, GFP_KERNEL); + skb = alloc_skb(urb->actual_length, GFP_ATOMIC); if (!skb) { nfc_err(&phy->udev->dev, "failed to alloc memory\n"); } else { @@ -180,7 +180,7 @@ static int pn533_usb_send_frame(struct pn533 *dev, if (dev->protocol_type == PN533_PROTO_REQ_RESP) { /* 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) goto error; } else if (dev->protocol_type == PN533_PROTO_REQ_ACK_RESP) { |