[PATCH][RESEND] [IA64] tiocx: check retval from bus_register()

[Jiri Kosina]

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

Reported-by: Fengguang Wu <fengguang.wu@xxxxxxxxx>
Signed-off-by: Jiri Kosina <jkosina@xxxxxxx>
---
 arch/ia64/sn/kernel/tiocx.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/arch/ia64/sn/kernel/tiocx.c b/arch/ia64/sn/kernel/tiocx.c
index 14c1711..e35f648 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;

-- 
Jiri Kosina
SUSE Labs
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