[PATCH v3 2/4] rv/reactors: propagate rv_register_reactor() error from reactor init

[wen . yang]

From: Wen Yang <wen.yang@xxxxxxxxx>

Both register_react_printk() and register_react_panic() ignore the
return value of rv_register_reactor() and always return 0.  If the
registration fails (e.g. a duplicate reactor name), the init functions
silently report success even though the reactor was not registered.

Propagate the error from rv_register_reactor() so a failed registration
is reported instead of being silently ignored.

Suggested-by: Gabriele Monaco <gmonaco@xxxxxxxxxx>
Reviewed-by: Gabriele Monaco <gmonaco@xxxxxxxxxx>
Signed-off-by: Wen Yang <wen.yang@xxxxxxxxx>
---
 kernel/trace/rv/reactor_panic.c  | 3 +--
 kernel/trace/rv/reactor_printk.c | 3 +--
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/kernel/trace/rv/reactor_panic.c b/kernel/trace/rv/reactor_panic.c
index 76537b8a4343..db7116ceafff 100644
--- a/kernel/trace/rv/reactor_panic.c
+++ b/kernel/trace/rv/reactor_panic.c
@@ -26,8 +26,7 @@ static struct rv_reactor rv_panic = {
 
 static int __init register_react_panic(void)
 {
-	rv_register_reactor(&rv_panic);
-	return 0;
+	return rv_register_reactor(&rv_panic);
 }
 
 static void __exit unregister_react_panic(void)
diff --git a/kernel/trace/rv/reactor_printk.c b/kernel/trace/rv/reactor_printk.c
index 48c934e315b3..002a10f6aa7b 100644
--- a/kernel/trace/rv/reactor_printk.c
+++ b/kernel/trace/rv/reactor_printk.c
@@ -25,8 +25,7 @@ static struct rv_reactor rv_printk = {
 
 static int __init register_react_printk(void)
 {
-	rv_register_reactor(&rv_printk);
-	return 0;
+	return rv_register_reactor(&rv_printk);
 }
 
 static void __exit unregister_react_printk(void)
-- 
2.25.1