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Fix panic on invalid 'mdconfig -at preload' usage.

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PR:		kern/80136
This commit is contained in:
Edward Tomasz Napierala 2010-02-27 10:41:30 +00:00
parent bd2c49af72
commit 5ed1eb2bb0
1 changed files with 2 additions and 0 deletions
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2
sys/dev/md/md.c
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@ -814,6 +814,8 @@ mdcreate_preload(struct md_s *sc, struct md_ioctl *mdio)
if (mdio->md_options & ~(MD_AUTOUNIT | MD_FORCE))
return (EINVAL);
if (mdio->md_base == 0)
return (EINVAL);
sc->flags = mdio->md_options & MD_FORCE;
/* Cast to pointer size, then to pointer to avoid warning */
sc->pl_ptr = (u_char *)(uintptr_t)mdio->md_base;