From: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Date: Wed, 7 Apr 2021 15:55:26 +0000 (-0400)
Subject: Fix: sessiond: kernel: invalid error code check
X-Git-Tag: v2.13.0-rc1~159
X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=commitdiff_plain;h=d79bd829001f60a92c9c88c857635b8543ccf7ef

Fix: sessiond: kernel: invalid error code check

The `EEXIST` error code does not make sense for a kernctl_disable()
operation. In fact, not existing would be an error.

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Change-Id: Iae193c9c8d8697af3154a9862bf14d4398c60b60
---

diff --git a/src/bin/lttng-sessiond/kernel.c b/src/bin/lttng-sessiond/kernel.c
index b431b3dfb..c377509ab 100644
--- a/src/bin/lttng-sessiond/kernel.c
+++ b/src/bin/lttng-sessiond/kernel.c
@@ -769,14 +769,8 @@ int kernel_disable_event(struct ltt_kernel_event *event)
 
 	ret = kernctl_disable(event->fd);
 	if (ret < 0) {
-		switch (-ret) {
-		case EEXIST:
-			ret = LTTNG_ERR_KERN_EVENT_EXIST;
-			break;
-		default:
-			PERROR("disable kernel event");
-			break;
-		}
+		PERROR("Failed to disable kernel event: name = '%s', fd = %d",
+				event->event->name, event->fd);
 		goto error;
 	}
 
@@ -805,15 +799,8 @@ int kernel_disable_event_notifier_rule(struct ltt_kernel_event_notifier_rule *ev
 
 	ret = kernctl_disable(event->fd);
 	if (ret < 0) {
-		switch (-ret) {
-		case EEXIST:
-			ret = LTTNG_ERR_KERN_EVENT_EXIST;
-			break;
-		default:
-			PERROR("Failed to disable kernel event notifier: fd = %d, token = %" PRIu64,
-					event->fd, event->token);
-			break;
-		}
+		PERROR("Failed to disable kernel event notifier: fd = %d, token = %" PRIu64,
+				event->fd, event->token);
 		goto error;
 	}