diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2018-06-07 15:54:48 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-06-25 21:36:45 +0800 |
| commit | ecc443c03fb14abfb8a6af5e3b2d43b5257e60f2 (patch) | |
| tree | acbccc06ada4eae916a114e2d0400eb830a0dcf6 /drivers/nfc/pn533 | |
| parent | 4a762569a2722b8a48066c7bacf0e1dc67d17fa1 (diff) | |
| download | lwn-ecc443c03fb14abfb8a6af5e3b2d43b5257e60f2.tar.gz lwn-ecc443c03fb14abfb8a6af5e3b2d43b5257e60f2.zip | |
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: 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>
Diffstat (limited to 'drivers/nfc/pn533')
| -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 d5553c47014f..5d823e965883 100644 --- a/drivers/nfc/pn533/usb.c +++ b/drivers/nfc/pn533/usb.c @@ -74,7 +74,7 @@ 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 { @@ -186,7 +186,7 @@ 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) { |