/*********************************************************************
 *                
 * Filename:      crc.h
 * Version:       
 * Description:   CRC routines
 * Status:        Experimental.
 * Author:        Dag Brattli <dagb@cs.uit.no>
 * Created at:    Mon Aug  4 20:40:53 1997
 * Modified at:   Sun May  2 20:25:23 1999
 * Modified by:   Dag Brattli <dagb@cs.uit.no>
 * 
 ********************************************************************/

#ifndef IRDA_CRC_H
#define IRDA_CRC_H

#include <linux/types.h>
#include <linux/crc-ccitt.h>

#define INIT_FCS  0xffff   /* Initial FCS value */
#define GOOD_FCS  0xf0b8   /* Good final FCS value */

/* Recompute the FCS with one more character appended. */
#define irda_fcs(fcs, c) crc_ccitt_byte(fcs, c)

/* Recompute the FCS with len bytes appended. */
#define irda_calc_crc16(fcs, buf, len) crc_ccitt(fcs, buf, len)

#endif
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<tr><td class='sub'>net-next plumbings</td><td class='sub right'>Tobias Klauser</td></tr></table>
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<tr><th>author</th><td>Pan Bian &lt;bianpan2016@163.com&gt;</td><td class='right'>2016-12-03 19:24:48 +0800</td></tr>
<tr><th>committer</th><td>David S. Miller &lt;davem@davemloft.net&gt;</td><td class='right'>2016-12-05 13:27:15 -0500</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=51920830d9d0eb617af18dc60443fcd4fb50a533'>51920830d9d0eb617af18dc60443fcd4fb50a533</a> (<a href='/cgit.cgi/linux/net-next.git/patch/?id=51920830d9d0eb617af18dc60443fcd4fb50a533'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=51920830d9d0eb617af18dc60443fcd4fb50a533'>39c0d78a3843af8ec383be5c34b396fa9fb88b63</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=b59589635ff01cc25270360709eeeb5c45c6abb9'>b59589635ff01cc25270360709eeeb5c45c6abb9</a> (<a href='/cgit.cgi/linux/net-next.git/diff/?id=51920830d9d0eb617af18dc60443fcd4fb50a533&amp;id2=b59589635ff01cc25270360709eeeb5c45c6abb9'>diff</a>)</td></tr></table>
<div class='commit-subject'>net: usb: set error code when usb_alloc_urb fails</div><div class='commit-msg'>In function lan78xx_probe(), variable ret takes the errno code on
failures. However, when the call to usb_alloc_urb() fails, its value
will keeps 0. 0 indicates success in the context, which is inconsistent
with the execution result. This patch fixes the bug, assigning
"-ENOMEM" to ret when usb_alloc_urb() returns a NULL pointer.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188771

Signed-off-by: Pan Bian &lt;bianpan2016@163.com&gt;
Acked-by: Woojung Huh &lt;woojung.huh@microchip.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
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