libata: fix error checking in in ata_parse_force_one()

ata_parse_force_one() was incorrectly comparing @p to @endp when it
should have been comparing @id.  The only consequence is that it may
end up using an invalid port number in "libata.force" module param
instead of rejecting it.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Petru-Florin Mihancea <petrum@gmail.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=195785
This commit is contained in:
Tejun Heo 2017-05-31 14:26:26 -04:00
parent 3e4240da0e
commit f7cf69ae17

View File

@ -6800,7 +6800,7 @@ static int __init ata_parse_force_one(char **cur,
}
force_ent->port = simple_strtoul(id, &endp, 10);
if (p == endp || *endp != '\0') {
if (id == endp || *endp != '\0') {
*reason = "invalid port/link";
return -EINVAL;
}