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Make sure the total number of sectors is not 0 for a vnode-type md to

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avoid a division by zero which would occur on open() in this case.

Reviewed by:	phk
This commit is contained in:
Thomas Moestl 2001-07-26 20:05:20 +00:00
parent 5b718312b7
commit 3d3c27fedf
1 changed files with 4 additions and 0 deletions
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4
sys/dev/md/md.c
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@ -678,6 +678,10 @@ mdcreate_vnode(struct md_ioctl *mdio, struct proc *p)
sc->nsect = mdio->md_size;
else
sc->nsect = vattr.va_size / sc->secsize; /* XXX: round up ? */
if (sc->nsect == 0) {
(void) vn_close(nd.ni_vp, flags, p->p_ucred, p);
return (EINVAL);
}
error = mdsetcred(sc, p->p_ucred);
if (error) {
(void) vn_close(nd.ni_vp, flags, p->p_ucred, p);