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Commit 82dec34d authored by Waldemar Rymarkiewicz's avatar Waldemar Rymarkiewicz Committed by Samuel Ortiz
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NFC: pn533: Fix in/out frame buffer allocation 



Max frame size should be 264 bytes as per spec and not limited to
endpoint MaxPacketSize which is 64 in my case (acr122 reader).

Signed-off-by: default avatarWaldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
parent a8df0f37

drivers/nfc/pn533.c

+6 −2
Original line number Diff line number Diff line
@@ -84,6 +84,10 @@ MODULE_DEVICE_TABLE(usb, pn533_table); 
#define PN533_LISTEN_TIME 2



/* frame definitions */

#define PN533_NORMAL_FRAME_MAX_LEN 262  /* 6   (PREAMBLE, SOF, LEN, LCS, TFI)

					   254 (DATA)

					   2   (DCS, postamble) */



#define PN533_FRAME_TAIL_SIZE 2

#define PN533_FRAME_SIZE(f) (sizeof(struct pn533_frame) + f->datalen + \

				PN533_FRAME_TAIL_SIZE)
@@ -2373,9 +2377,9 @@ static int pn533_probe(struct usb_interface *interface, 
		goto error;

	}



	dev->in_frame = kmalloc(dev->in_maxlen, GFP_KERNEL);

	dev->in_frame = kmalloc(PN533_NORMAL_FRAME_MAX_LEN, GFP_KERNEL);

	dev->in_urb = usb_alloc_urb(0, GFP_KERNEL);

	dev->out_frame = kmalloc(dev->out_maxlen, GFP_KERNEL);

	dev->out_frame = kmalloc(PN533_NORMAL_FRAME_MAX_LEN, GFP_KERNEL);

	dev->out_urb = usb_alloc_urb(0, GFP_KERNEL);



	if (!dev->in_frame || !dev->out_frame ||