X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fkernel.c;h=2936406d84f704d1a293e95dd21f248e5c5660b3;hp=8e960dfed8fe59786a3de2436aae3155db9851d6;hb=87eb4ab891dda35c54ffa95f356a4c4b198d8716;hpb=a62a65563c1e7cea740c5f8caf7d425174e2afbe

diff --git a/src/bin/lttng-sessiond/kernel.c b/src/bin/lttng-sessiond/kernel.c
index 8e960dfed..2936406d8 100644
--- a/src/bin/lttng-sessiond/kernel.c
+++ b/src/bin/lttng-sessiond/kernel.c
@@ -208,6 +208,11 @@ int kernel_create_event(struct lttng_event *ev,
 	 */
 	if (ret == 0 && event->event->instrumentation == LTTNG_KERNEL_SYSCALL) {
 		DBG2("Kernel event syscall creation success");
+		/*
+		 * We use fd == -1 to ensure that we never trigger a close of fd
+		 * 0.
+		 */
+		event->fd = -1;
 		goto add_list;
 	}
 
@@ -483,7 +488,7 @@ int kernel_open_channel_stream(struct ltt_kernel_channel *channel)
 	int ret;
 	struct ltt_kernel_stream *lks;
 
-	while ((ret = kernctl_create_stream(channel->fd)) > 0) {
+	while ((ret = kernctl_create_stream(channel->fd)) >= 0) {
 		lks = trace_kernel_create_stream();
 		if (lks == NULL) {
 			close(ret);