[src/trunk]: src/sbin/fdisk fdisk(8): Convert realloc(x * y) to reallocarr. E...

[nia <nia%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/1969cb06e6da
branches:  trunk
changeset: 1024768:1969cb06e6da
user:      nia <nia%NetBSD.org@localhost>
date:      Wed Nov 03 14:30:04 2021 +0000

description:
fdisk(8): Convert realloc(x * y) to reallocarr. Eliminate temp variables.

diffstat:

 sbin/fdisk/fdisk.c |  19 +++++++------------
 1 files changed, 7 insertions(+), 12 deletions(-)

diffs (55 lines):

diff -r 353c8aa204bf -r 1969cb06e6da sbin/fdisk/fdisk.c
--- a/sbin/fdisk/fdisk.c        Wed Nov 03 14:25:39 2021 +0000
+++ b/sbin/fdisk/fdisk.c        Wed Nov 03 14:30:04 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: fdisk.c,v 1.159 2020/05/24 21:02:12 wiz Exp $ */
+/*     $NetBSD: fdisk.c,v 1.160 2021/11/03 14:30:04 nia Exp $ */
 
 /*
  * Mach Operating System
@@ -39,7 +39,7 @@
 #include <sys/cdefs.h>
 
 #ifndef lint
-__RCSID("$NetBSD: fdisk.c,v 1.159 2020/05/24 21:02:12 wiz Exp $");
+__RCSID("$NetBSD: fdisk.c,v 1.160 2021/11/03 14:30:04 nia Exp $");
 #endif /* not lint */
 
 #define MBRPTYPENAMES
@@ -1148,7 +1148,6 @@
        struct mbr_partition *mp;
        struct mbr_sector *boot;
        daddr_t offset;
-       struct mbr_sector *nptn;
 
        /* find first (there should only be one) extended partition */
        for (mp = mboot.mbr_parts; !MBR_IS_EXTENDED(mp->mbrp_type); mp++)
@@ -1163,10 +1162,9 @@
        ext.limit = ext.base + le32toh(mp->mbrp_size);
        ext.ptn_id = mp - mboot.mbr_parts;
        for (offset = 0;; offset = le32toh(boot->mbr_parts[1].mbrp_start)) {
-               nptn = realloc(ext.ptn, (ext.num_ptn + 1) * sizeof *ext.ptn);
-               if (nptn == NULL)
+               if (reallocarr(&ext.ptn,
+                   ext.num_ptn + 1, sizeof(*ext.ptn)) != 0)
                        err(1, "Malloc failed");
-               ext.ptn = nptn;
                boot = ext.ptn + ext.num_ptn;
                if (read_s0(offset + ext.base, boot) == -1)
                        break;
@@ -1810,12 +1808,9 @@
 {
        int part;
        struct mbr_partition *partp;
-       struct mbr_sector *nptn;
-
-       nptn = realloc(ext.ptn, (ext.num_ptn + 1) * sizeof *ext.ptn);
-       if (!nptn)
-               err(1, "realloc");
-       ext.ptn = nptn;
+
+       if (reallocarr(&ext.ptn, ext.num_ptn + 1, sizeof(*ext.ptn)) != 0)
+               err(1, "reallocarr");
        for (part = 0; part < ext.num_ptn; part++)
                if (ext_offset(part) > start)
                        break;