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Access fifoinfo only when it's non-NULL.

This commit is contained in:
pooka 2010-03-27 02:33:11 +00:00
parent 4f083821e4
commit 57fb3b92e2
1 changed files with 6 additions and 5 deletions
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11
sys/miscfs/fifofs/fifo_vnops.c
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@ -1,4 +1,4 @@
/* $NetBSD: fifo_vnops.c,v 1.66 2008/04/28 20:24:08 martin Exp $ */
/* $NetBSD: fifo_vnops.c,v 1.67 2010/03/27 02:33:11 pooka Exp $ */
/*-
* Copyright (c) 2008 The NetBSD Foundation, Inc.
@ -58,7 +58,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: fifo_vnops.c,v 1.66 2008/04/28 20:24:08 martin Exp $");
__KERNEL_RCSID(0, "$NetBSD: fifo_vnops.c,v 1.67 2010/03/27 02:33:11 pooka Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -528,9 +528,10 @@ fifo_printinfo(struct vnode *vp)
{
struct fifoinfo *fip;
fip = vp->v_fifoinfo;
printf(", fifo with %d readers and %d writers",
fip->fi_readers, fip->fi_writers);
if ((fip = vp->v_fifoinfo) != NULL) {
printf(", fifo with %d readers and %d writers",
fip->fi_readers, fip->fi_writers);
}
}
/*