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Handle the special ruleset 0 in devfs_ruleset_use(). An attempt set the

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current ruleset to 0 with command "devfs ruleset 0" triggered a KASSERT
in devfs_ruleset_create().

PR:		kern/125030
Submitted by:	Mateusz Guzik
This commit is contained in:
jh 2010-12-12 08:52:13 +00:00
parent d381cdd7a8
commit bb9ca91194
1 changed files with 5 additions and 0 deletions
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5
sys/fs/devfs/devfs_rule.c
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@ -742,6 +742,11 @@ devfs_ruleset_use(devfs_rsnum rsnum, struct devfs_mount *dm)
devfs_ruleset_reap(cds);
}
if (rsnum == 0) {
dm->dm_ruleset = 0;
return (0);
}
ds = devfs_ruleset_bynum(rsnum);
if (ds == NULL)
ds = devfs_ruleset_create(rsnum);