Don't use NULL in non-pointer contexts.

13 files changed, 50 insertions, 54 deletions

diff --git a/sys/amd64/amd64/vm_machdep.c b/sys/amd64/amd64/vm_machdep.c
index fef61cd..bfa37bb 100644
--- a/sys/amd64/amd64/vm_machdep.c
+++ b/sys/amd64/amd64/vm_machdep.c
@@ -38,7 +38,7 @@
  *
  *	from: @(#)vm_machdep.c	7.3 (Berkeley) 5/13/91
  *	Utah $Hdr: vm_machdep.c 1.16.1.1 89/06/23$
- *	$Id: vm_machdep.c,v 1.65 1996/06/20 01:47:21 davidg Exp $
+ *	$Id: vm_machdep.c,v 1.66 1996/06/20 08:07:30 davidg Exp $
  */
 
 #include "npx.h"
@@ -226,13 +226,13 @@ more:
 
 	if( size == 0) {
 		splx(s);
-		return NULL;
+		return 0;
 	}
 
 	if ((kva = kmem_alloc_pageable(io_map, size)) == 0) {
 		if( !waitok) {
 			splx(s);
-			return NULL;
+			return 0;
 		}
 		bmwait = 1;
 		tsleep((caddr_t) io_map, PRIBIO, "bmwait", 0);
diff --git a/sys/dev/scd/scd.c b/sys/dev/scd/scd.c
index f6c15e4..df219c7 100644
--- a/sys/dev/scd/scd.c
+++ b/sys/dev/scd/scd.c
@@ -41,7 +41,7 @@
  */
 
 
-/* $Id: scd.c,v 1.21 1996/06/08 09:18:23 bde Exp $ */
+/* $Id: scd.c,v 1.22 1996/06/18 01:22:30 bde Exp $ */
 
 /* Please send any comments to micke@dynas.se */
 
@@ -1159,7 +1159,7 @@ spin_up(unsigned unit)
 	int loop_count = 0;
 
 again:
-	rc = send_cmd(unit, CMD_SPIN_UP, NULL, 0, res_reg, &res_size);
+	rc = send_cmd(unit, CMD_SPIN_UP, 0, 0, res_reg, &res_size);
 	if (rc != 0) {
 		XDEBUG(2, ("scd%d: CMD_SPIN_UP error 0x%x\n", unit, rc));
 		return rc;
diff --git a/sys/i386/i386/vm_machdep.c b/sys/i386/i386/vm_machdep.c
index fef61cd..bfa37bb 100644
--- a/sys/i386/i386/vm_machdep.c
+++ b/sys/i386/i386/vm_machdep.c
@@ -38,7 +38,7 @@
  *
  *	from: @(#)vm_machdep.c	7.3 (Berkeley) 5/13/91
  *	Utah $Hdr: vm_machdep.c 1.16.1.1 89/06/23$
- *	$Id: vm_machdep.c,v 1.65 1996/06/20 01:47:21 davidg Exp $
+ *	$Id: vm_machdep.c,v 1.66 1996/06/20 08:07:30 davidg Exp $
  */
 
 #include "npx.h"
@@ -226,13 +226,13 @@ more:
 
 	if( size == 0) {
 		splx(s);
-		return NULL;
+		return 0;
 	}
 
 	if ((kva = kmem_alloc_pageable(io_map, size)) == 0) {
 		if( !waitok) {
 			splx(s);
-			return NULL;
+			return 0;
 		}
 		bmwait = 1;
 		tsleep((caddr_t) io_map, PRIBIO, "bmwait", 0);
diff --git a/sys/i386/isa/if_ze.c b/sys/i386/isa/if_ze.c
index 655516b..736b54a 100644
--- a/sys/i386/isa/if_ze.c
+++ b/sys/i386/isa/if_ze.c
@@ -47,7 +47,7 @@
  */
 
 /*
- * $Id: if_ze.c,v 1.30 1996/06/12 05:03:45 gpalmer Exp $
+ * $Id: if_ze.c,v 1.31 1996/06/25 20:30:30 bde Exp $
  */
 
 #include "ze.h"
@@ -355,7 +355,7 @@ ze_probe(isa_dev)
 	int slot;
 
         if ((slot = ze_find_adapter (isa_dev->id_maddr, isa_dev->id_reconfig)) < 0)
-	    return NULL;
+	    return 0;
 
 	/*
 	 * okay, we found a card, so set it up
diff --git a/sys/i386/isa/if_zp.c b/sys/i386/isa/if_zp.c
index ae53e23..0746ee4 100644
--- a/sys/i386/isa/if_zp.c
+++ b/sys/i386/isa/if_zp.c
@@ -34,7 +34,7 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  *	From: if_ep.c,v 1.9 1994/01/25 10:46:29 deraadt Exp $
- *	$Id: if_zp.c,v 1.21 1996/06/18 01:22:24 bde Exp $
+ *	$Id: if_zp.c,v 1.22 1996/06/25 20:30:34 bde Exp $
  */
 /*-
  * TODO:
@@ -339,7 +339,7 @@ zpprobe(struct isa_device * isa_dev)
 	int     re_init_flag;
 
 	if ((slot = zp_find_adapter(isa_dev->id_maddr, isa_dev->id_reconfig)) < 0)
-		return NULL;
+		return 0;
 
 	/* okay, we found a card, so set it up */
 	/* Inhibit 16 bit memory delay. POINTETH.SYS apparently does this, for
diff --git a/sys/i386/isa/scd.c b/sys/i386/isa/scd.c
index f6c15e4..df219c7 100644
--- a/sys/i386/isa/scd.c
+++ b/sys/i386/isa/scd.c
@@ -41,7 +41,7 @@
  */
 
 
-/* $Id: scd.c,v 1.21 1996/06/08 09:18:23 bde Exp $ */
+/* $Id: scd.c,v 1.22 1996/06/18 01:22:30 bde Exp $ */
 
 /* Please send any comments to micke@dynas.se */
 
@@ -1159,7 +1159,7 @@ spin_up(unsigned unit)
 	int loop_count = 0;
 
 again:
-	rc = send_cmd(unit, CMD_SPIN_UP, NULL, 0, res_reg, &res_size);
+	rc = send_cmd(unit, CMD_SPIN_UP, 0, 0, res_reg, &res_size);
 	if (rc != 0) {
 		XDEBUG(2, ("scd%d: CMD_SPIN_UP error 0x%x\n", unit, rc));
 		return rc;
diff --git a/sys/kern/kern_exec.c b/sys/kern/kern_exec.c
index 137f9d2..cfe55e0 100644
--- a/sys/kern/kern_exec.c
+++ b/sys/kern/kern_exec.c
@@ -23,7 +23,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	$Id: kern_exec.c,v 1.42 1996/06/03 04:07:35 davidg Exp $
+ *	$Id: kern_exec.c,v 1.43 1996/06/03 04:12:18 davidg Exp $
  */
 
 #include <sys/param.h>
@@ -525,7 +525,7 @@ exec_copyout_strings(imgp)
 	}
 
 	/* a null vector table pointer seperates the argp's from the envp's */
-	suword(vectp++, NULL);
+	suword(vectp++, 0);
 
 	suword(&arginfo->ps_envstr, (int)vectp);
 	suword(&arginfo->ps_nenvstr, envc);
@@ -541,7 +541,7 @@ exec_copyout_strings(imgp)
 	}
 
 	/* end of vector table is a null pointer */
-	suword(vectp, NULL);
+	suword(vectp, 0);
 
 	return (stack_base);
 }
diff --git a/sys/netinet/ip_mroute.c b/sys/netinet/ip_mroute.c
index 6ab802f..e53b2a5 100644
--- a/sys/netinet/ip_mroute.c
+++ b/sys/netinet/ip_mroute.c
@@ -9,7 +9,7 @@
  * Modified by Bill Fenner, PARC, April 1995
  *
  * MROUTING Revision: 3.5
- * $Id: ip_mroute.c,v 1.31 1996/03/26 19:16:44 fenner Exp $
+ * $Id: ip_mroute.c,v 1.32 1996/04/18 15:41:11 wollman Exp $
  */
 
 #include "opt_mrouting.h"
@@ -610,7 +610,7 @@ X_ip_mrouter_done()
     /*
      * Reset de-encapsulation cache
      */
-    last_encap_src = NULL;
+    last_encap_src = 0;
     last_encap_vif = NULL;
     have_encap_tunnel = 0;
  
diff --git a/sys/pci/meteor.c b/sys/pci/meteor.c
index 2f2917f..b4c8b74 100644
--- a/sys/pci/meteor.c
+++ b/sys/pci/meteor.c
@@ -860,13 +860,13 @@ set_fps(meteor_reg_t *mtr, u_short fps)
 static vm_offset_t
 get_meteor_mem(int unit, unsigned size)
 {
-vm_offset_t	addr = NULL;
+vm_offset_t	addr = 0;
 
 	addr = vm_page_alloc_contig(size, 0x100000, 0xffffffff, 1<<24);
-	if(addr == NULL)
+	if(addr == 0)
 		addr = vm_page_alloc_contig(size, 0x100000, 0xffffffff,
 								PAGE_SIZE);
-	if(addr == NULL) {
+	if(addr == 0) {
 		printf("meteor%d: Unable to allocate %d bytes of memory.\n",
 			unit, size);
 	}
@@ -1056,7 +1056,7 @@ met_attach(pcici_t tag, int unit)
 	if(METEOR_ALLOC)
 		buf = get_meteor_mem(unit, METEOR_ALLOC);
 	else
-		buf = NULL;
+		buf = 0;
 	if(bootverbose) {
 		printf("meteor%d: buffer size %d, addr 0x%x\n",
 			unit, METEOR_ALLOC, vtophys(buf));
@@ -1064,7 +1064,7 @@ met_attach(pcici_t tag, int unit)
 
 	mtr->bigbuf = buf;
 	mtr->alloc_pages = METEOR_ALLOC_PAGES;
-	if(buf != NULL) {
+	if(buf != 0) {
 		bzero((caddr_t) buf, METEOR_ALLOC);
 		buf = vtophys(buf);
 					/* 640x480 RGB 16 */
@@ -1259,7 +1259,7 @@ meteor_read(dev_t dev, struct uio *uio, int ioflag)
 		return(ENXIO);
 
 	mtr = &(meteor[unit]);
-	if (mtr->bigbuf == NULL)/* no frame buffer allocated (ioctl failed) */
+	if (mtr->bigbuf == 0)/* no frame buffer allocated (ioctl failed) */
 		return(ENOMEM);
 
 	if (mtr->flags & METEOR_CAP_MASK)
@@ -1570,7 +1570,7 @@ meteor_ioctl(dev_t dev, int cmd, caddr_t arg, int flag, struct proc *pr)
 		temp = mtr->flags;
 		switch (*(int *) arg) {
 		case METEOR_CAP_SINGLE:
-			if (mtr->bigbuf==NULL)	/* no frame buffer allocated */
+			if (mtr->bigbuf==0)	/* no frame buffer allocated */
 				return(ENOMEM);
 
 			if (temp & METEOR_CAP_MASK)
@@ -1586,7 +1586,7 @@ meteor_ioctl(dev_t dev, int cmd, caddr_t arg, int flag, struct proc *pr)
 			mtr->flags &= ~(METEOR_SINGLE|METEOR_WANT_MASK);
 			break;
 		case METEOR_CAP_CONTINOUS:
-			if (mtr->bigbuf==NULL)	/* no frame buffer allocated */
+			if (mtr->bigbuf==0)	/* no frame buffer allocated */
 				return(ENOMEM);
 
 			if (temp & METEOR_CAP_MASK)
@@ -1618,7 +1618,7 @@ meteor_ioctl(dev_t dev, int cmd, caddr_t arg, int flag, struct proc *pr)
 			return(EIO);
 		if (mtr->flags & (METEOR_YUV_PLANAR | METEOR_YUV_422)) /* XXX */
 			return(EINVAL); /* should fix intr so we allow these */
-		if (mtr->bigbuf == NULL)
+		if (mtr->bigbuf == 0)
 			return(ENOMEM);
 		if ((mtr->frames < 2) ||
 		    (frame->lowat < 1 || frame->lowat >= mtr->frames) ||
@@ -1723,7 +1723,7 @@ meteor_ioctl(dev_t dev, int cmd, caddr_t arg, int flag, struct proc *pr)
 #endif
 			) {
 				buf = get_meteor_mem(unit, temp*PAGE_SIZE);
-				if(buf != NULL) {
+				if(buf != 0) {
 					kmem_free(kernel_map, mtr->bigbuf,
 					  (mtr->alloc_pages * PAGE_SIZE));
 					mtr->bigbuf = buf;
diff --git a/sys/scsi/scsiconf.c b/sys/scsi/scsiconf.c
index 24223d3..7da014e 100644
--- a/sys/scsi/scsiconf.c
+++ b/sys/scsi/scsiconf.c
@@ -16,7 +16,7 @@
  *
  * New configuration setup: dufault@hda.com
  *
- *      $Id: scsiconf.c,v 1.59 1996/06/03 14:25:11 jfieber Exp $
+ *      $Id: scsiconf.c,v 1.60 1996/06/14 11:02:16 asami Exp $
  */
 
 #include "opt_scsi.h"
@@ -407,10 +407,6 @@ static struct scsi_device probe_switch =
     NULL,
     NULL,
     "probe",
-    0,
-	{0, 0},
-    NULL,
-    0
 };
 
 /*
diff --git a/sys/ufs/ffs/ffs_alloc.c b/sys/ufs/ffs/ffs_alloc.c
index 7450088..fd10f11 100644
--- a/sys/ufs/ffs/ffs_alloc.c
+++ b/sys/ufs/ffs/ffs_alloc.c
@@ -31,7 +31,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)ffs_alloc.c	8.8 (Berkeley) 2/21/94
- * $Id: ffs_alloc.c,v 1.23 1996/01/05 18:31:45 wollman Exp $
+ * $Id: ffs_alloc.c,v 1.24 1996/05/08 04:29:07 gpalmer Exp $
  */
 
 #include "opt_quota.h"
@@ -654,7 +654,7 @@ ffs_blkpref(ip, lbn, indx, bap)
 				fs->fs_cgrotor = cg;
 				return (fs->fs_fpg * cg + fs->fs_frag);
 			}
-		return (NULL);
+		return (0);
 	}
 	/*
 	 * One or more previous blocks have been laid out. If less
@@ -756,30 +756,30 @@ ffs_fragextend(ip, cg, bprev, osize, nsize)
 
 	fs = ip->i_fs;
 	if (fs->fs_cs(fs, cg).cs_nffree < numfrags(fs, nsize - osize))
-		return (NULL);
+		return (0);
 	frags = numfrags(fs, nsize);
 	bbase = fragnum(fs, bprev);
 	if (bbase > fragnum(fs, (bprev + frags - 1))) {
 		/* cannot extend across a block boundary */
-		return (NULL);
+		return (0);
 	}
 	error = bread(ip->i_devvp, fsbtodb(fs, cgtod(fs, cg)),
 		(int)fs->fs_cgsize, NOCRED, &bp);
 	if (error) {
 		brelse(bp);
-		return (NULL);
+		return (0);
 	}
 	cgp = (struct cg *)bp->b_data;
 	if (!cg_chkmagic(cgp)) {
 		brelse(bp);
-		return (NULL);
+		return (0);
 	}
 	cgp->cg_time = time.tv_sec;
 	bno = dtogd(fs, bprev);
 	for (i = numfrags(fs, osize); i < frags; i++)
 		if (isclr(cg_blksfree(cgp), bno + i)) {
 			brelse(bp);
-			return (NULL);
+			return (0);
 		}
 	/*
 	 * the current fragment can be extended
@@ -825,18 +825,18 @@ ffs_alloccg(ip, cg, bpref, size)
 
 	fs = ip->i_fs;
 	if (fs->fs_cs(fs, cg).cs_nbfree == 0 && size == fs->fs_bsize)
-		return (NULL);
+		return (0);
 	error = bread(ip->i_devvp, fsbtodb(fs, cgtod(fs, cg)),
 		(int)fs->fs_cgsize, NOCRED, &bp);
 	if (error) {
 		brelse(bp);
-		return (NULL);
+		return (0);
 	}
 	cgp = (struct cg *)bp->b_data;
 	if (!cg_chkmagic(cgp) ||
 	    (cgp->cg_cs.cs_nbfree == 0 && size == fs->fs_bsize)) {
 		brelse(bp);
-		return (NULL);
+		return (0);
 	}
 	cgp->cg_time = time.tv_sec;
 	if (size == fs->fs_bsize) {
@@ -860,7 +860,7 @@ ffs_alloccg(ip, cg, bpref, size)
 		 */
 		if (cgp->cg_cs.cs_nbfree == 0) {
 			brelse(bp);
-			return (NULL);
+			return (0);
 		}
 		bno = ffs_alloccgblk(fs, cgp, bpref);
 		bpref = dtogd(fs, bno);
@@ -878,7 +878,7 @@ ffs_alloccg(ip, cg, bpref, size)
 	bno = ffs_mapsearch(fs, cgp, bpref, allocsiz);
 	if (bno < 0) {
 		brelse(bp);
-		return (NULL);
+		return (0);
 	}
 	for (i = 0; i < frags; i++)
 		clrbit(cg_blksfree(cgp), bno + i);
@@ -992,7 +992,7 @@ norot:
 	 */
 	bno = ffs_mapsearch(fs, cgp, bpref, (int)fs->fs_frag);
 	if (bno < 0)
-		return (NULL);
+		return (0);
 	cgp->cg_rotor = bno;
 gotit:
 	blkno = fragstoblks(fs, bno);
@@ -1122,17 +1122,17 @@ ffs_nodealloccg(ip, cg, ipref, mode)
 
 	fs = ip->i_fs;
 	if (fs->fs_cs(fs, cg).cs_nifree == 0)
-		return (NULL);
+		return (0);
 	error = bread(ip->i_devvp, fsbtodb(fs, cgtod(fs, cg)),
 		(int)fs->fs_cgsize, NOCRED, &bp);
 	if (error) {
 		brelse(bp);
-		return (NULL);
+		return (0);
 	}
 	cgp = (struct cg *)bp->b_data;
 	if (!cg_chkmagic(cgp) || cgp->cg_cs.cs_nifree == 0) {
 		brelse(bp);
-		return (NULL);
+		return (0);
 	}
 	cgp->cg_time = time.tv_sec;
 	if (ipref) {
diff --git a/sys/ufs/lfs/lfs_bio.c b/sys/ufs/lfs/lfs_bio.c
index 4816ab2..e184936 100644
--- a/sys/ufs/lfs/lfs_bio.c
+++ b/sys/ufs/lfs/lfs_bio.c
@@ -31,7 +31,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)lfs_bio.c	8.4 (Berkeley) 12/30/93
- * $Id: lfs_bio.c,v 1.7 1995/12/03 11:16:35 bde Exp $
+ * $Id: lfs_bio.c,v 1.8 1995/12/17 21:09:46 phk Exp $
  */
 
 #include <sys/param.h>
@@ -103,7 +103,7 @@ lfs_bwrite(ap)
 			/* Out of space, need cleaner to run */
 			wakeup(&lfs_allclean_wakeup);
 			error = tsleep(&fs->lfs_avail, PCATCH | PUSER,
-			    "cleaner", NULL);
+			    "cleaner", 0);
 			if (error) {
 				brelse(bp);
 				return (error);
diff --git a/sys/vm/vm_swap.c b/sys/vm/vm_swap.c
index 31c73df..c033872 100644
--- a/sys/vm/vm_swap.c
+++ b/sys/vm/vm_swap.c
@@ -31,7 +31,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)vm_swap.c	8.5 (Berkeley) 2/17/94
- * $Id: vm_swap.c,v 1.37 1996/03/28 14:36:48 scrappy Exp $
+ * $Id: vm_swap.c,v 1.38 1996/03/28 15:40:17 bde Exp $
  */
 
 #include <sys/param.h>
@@ -64,7 +64,7 @@ extern struct cdevsw sw_cdevsw ;
 
 static struct bdevsw sw_bdevsw = 
 	{ noopen,	noclose,	swstrategy,	noioc,		/*1*/
-	  nodump,	nopsize,	NULL,	"sw",	&sw_cdevsw,	-1 };
+	  nodump,	nopsize,	0,	"sw",	&sw_cdevsw,	-1 };
 
 static struct cdevsw sw_cdevsw = 
 	{ nullopen,	nullclose,	rawread,	rawwrite,	/*4*/