From: Jiri Kosina <jkosina@suse.cz>
Date: Tue, 19 Mar 2013 09:36:13 +0000 (+0100)
Subject: tiocx: check retval from bus_register()
X-Git-Tag: v3.10-rc1~199^2~12
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=d7c6797fbc2c2efa7573817685d2a76fd274d2de;p=~emulex%2Finfiniband.git

tiocx: check retval from bus_register()

Properly check return value from bus_register() and propagate it out of
tiocx_init() in case of failure.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Tony Luck <tony.luck@intel.com>
---

diff --git a/arch/ia64/sn/kernel/tiocx.c b/arch/ia64/sn/kernel/tiocx.c
index 14c1711238c..e35f6485c1f 100644
--- a/arch/ia64/sn/kernel/tiocx.c
+++ b/arch/ia64/sn/kernel/tiocx.c
@@ -490,11 +490,14 @@ static int __init tiocx_init(void)
 {
 	cnodeid_t cnodeid;
 	int found_tiocx_device = 0;
+	int err;
 
 	if (!ia64_platform_is("sn2"))
 		return 0;
 
-	bus_register(&tiocx_bus_type);
+	err = bus_register(&tiocx_bus_type);
+	if (err)
+		return err;
 
 	for (cnodeid = 0; cnodeid < num_cnodes; cnodeid++) {
 		nasid_t nasid;