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In linker_load_module(), check that rootdev != NODEV before calling

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linker_search_module().

Without this, modules loaded from loader.conf that then try to load
in additional modules (such as digi.ko loading a card's BIOS) die
badly in the vn_open() called from linker_search_module().

It may be worth checking (KASSERTing?) that rootdev != NODEV in
vn_open() too.
This commit is contained in:
Brian Somers 2002-04-10 01:14:45 +00:00
parent 96987c74d6
commit f1e4a6e941
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=94322
1 changed files with 5 additions and 3 deletions
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8
sys/kern/kern_linker.c
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@ -1619,14 +1619,16 @@ linker_load_module(const char *kldname, const char *modname,
} else {
if (modlist_lookup2(modname, verinfo) != NULL)
return (EEXIST);
if (kldname == NULL)
if (kldname != NULL)
pathname = linker_strdup(kldname);
else if (rootdev == NODEV)
pathname = NULL;
else
/*
* Need to find a KLD with required module
*/
pathname = linker_search_module(modname,
strlen(modname), verinfo);
else
pathname = linker_strdup(kldname);
}
if (pathname == NULL)
return (ENOENT);