mpt_register() returns a positive int between 1 and
MPT_MAX_PROTOCOL_DRIVERS. It returns MPT_MAX_PROTOCOL_DRIVERS if there
is no slot available. Most places don't check the return but this is
how it's done in mptctl.c as well.
Signed-off-by: Dan Carpenter <error27@xxxxxxxxx>
diff --git a/drivers/message/fusion/mptlan.c b/drivers/message/fusion/mptlan.c
index cbe9607..42affb1 100644
--- a/drivers/message/fusion/mptlan.c
+++ b/drivers/message/fusion/mptlan.c
@@ -1454,7 +1454,7 @@ static int __init mpt_lan_init (void)
LanCtx = mpt_register(lan_reply, MPTLAN_DRIVER,
"lan_reply");
- if (LanCtx <= 0) {
+ if (LanCtx >= MPT_MAX_PROTOCOL_DRIVERS) {
printk (KERN_ERR MYNAM ": Failed to register with MPT base driver\n");
return -EBUSY;
}
--
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