[src/trunk]: src/sys/arch/amiga/amiga If lp->d_secsize is updated, we need to...

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

details:   https://anonhg.NetBSD.org/src/rev/8be835ea5e16
branches:  trunk
changeset: 351804:8be835ea5e16
user:      rin <rin%NetBSD.org@localhost>
date:      Mon Feb 27 15:59:36 2017 +0000

description:
If lp->d_secsize is updated, we need to reallocate the buffer.
Thanks mlelstv for his comment on port-amiga.

diffstat:

 sys/arch/amiga/amiga/disksubr.c |  10 +++++++---
 1 files changed, 7 insertions(+), 3 deletions(-)

diffs (31 lines):

diff -r 5651fe532c95 -r 8be835ea5e16 sys/arch/amiga/amiga/disksubr.c
--- a/sys/arch/amiga/amiga/disksubr.c   Mon Feb 27 14:13:56 2017 +0000
+++ b/sys/arch/amiga/amiga/disksubr.c   Mon Feb 27 15:59:36 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: disksubr.c,v 1.65 2017/02/25 22:45:59 rin Exp $        */
+/*     $NetBSD: disksubr.c,v 1.66 2017/02/27 15:59:36 rin Exp $        */
 
 /*
  * Copyright (c) 1982, 1986, 1988 Regents of the University of California.
@@ -66,7 +66,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: disksubr.c,v 1.65 2017/02/25 22:45:59 rin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: disksubr.c,v 1.66 2017/02/27 15:59:36 rin Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -239,7 +239,11 @@
                lp->d_partitions[i].p_offset = 0;
        }
 
-       lp->d_secsize = rbp->nbytes;
+       if (lp->d_secsize != rbp->nbytes) {
+               lp->d_secsize = rbp->nbytes;
+               allocbuf(bp, (int)lp->d_secsize, 1);
+               rbp = baddr(bp);
+       }
        lp->d_nsectors = rbp->nsectors;
        lp->d_ntracks = rbp->nheads;
        /*