From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Fri, 18 Oct 2019 19:23:59 +0000 (-0400)
Subject: Fix: LTTNG_KERNEL_ADD_CALLSITE: Handle unknown event type
X-Git-Tag: v2.11.1~11
X-Git-Url: http://git.lttng.org./?a=commitdiff_plain;h=77cd7f175c3ab35ebd6fdfc0bcd93ff7a97a612c;p=lttng-modules.git

Fix: LTTNG_KERNEL_ADD_CALLSITE: Handle unknown event type

Return -ENOSYS for unknown event type (similarly to other commands)
rather than falling-through the switch statement.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---

diff --git a/lttng-abi.c b/lttng-abi.c
index 5624b6c4..ad689f28 100644
--- a/lttng-abi.c
+++ b/lttng-abi.c
@@ -1529,6 +1529,9 @@ long lttng_event_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 				(struct lttng_kernel_event_callsite __user *) arg);
 		case LTTNG_TYPE_ENABLER:
 			return -EINVAL;
+		default:
+			WARN_ON_ONCE(1);
+			return -ENOSYS;
 		}
 	default:
 		return -ENOIOCTLCMD;