another case where cdevsw becoming a pointer makes it neccesary to

check if it's NULL
This commit is contained in:
Julian Elischer 1995-12-14 18:26:55 +00:00
parent 091e867f75
commit e9fc6a73db
Notes: svn2git 2020-12-20 02:59:44 +00:00
svn path=/head/; revision=12831

View file

@ -34,7 +34,7 @@
* SUCH DAMAGE.
*
* @(#)kernfs_vfsops.c 8.4 (Berkeley) 1/21/94
* $Id: kernfs_vfsops.c,v 1.11 1995/12/11 09:24:32 phk Exp $
* $Id: kernfs_vfsops.c,v 1.12 1995/12/13 15:13:28 julian Exp $
*/
/*
@ -119,8 +119,12 @@ kernfs_init()
printf("kernfs_init\n"); /* printed during system boot */
#endif
if (!bdevsw[bmaj]) {
panic("root dev has no bdevsw");
}
for (cmaj = 0; cmaj < nchrdev; cmaj++) {
if (cdevsw[cmaj]->d_open == bdevsw[bmaj]->d_open) {
if (cdevsw[cmaj]
&& (cdevsw[cmaj]->d_open == bdevsw[bmaj]->d_open)) {
dev_t cdev = makedev(cmaj, minor(rootdev));
error = cdevvp(cdev, &rrootvp);
if (error == 0)