From: David Goulet <david.goulet@polymtl.ca>
Date: Tue, 4 Oct 2011 21:27:50 +0000 (-0400)
Subject: Add missing mutex lock for kconsumerd pid
X-Git-Tag: v2.0-pre15~195
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=4c93ba8b8e253ffa3943f4999bd912b535c40b88;p=lttng-tools.git

Add missing mutex lock for kconsumerd pid

Signed-off-by: David Goulet <david.goulet@polymtl.ca>
---

diff --git a/ltt-sessiond/main.c b/ltt-sessiond/main.c
index 32e47068e..8c09339ab 100644
--- a/ltt-sessiond/main.c
+++ b/ltt-sessiond/main.c
@@ -2606,14 +2606,17 @@ static int process_client_msg(struct command_ctx *cmd_ctx)
 			}
 
 			/* Start the kernel consumer daemon */
+			pthread_mutex_lock(&kconsumerd_pid_mutex);
 			if (kconsumerd_pid == 0 &&
 					cmd_ctx->lsm->cmd_type != LTTNG_REGISTER_CONSUMER) {
+				pthread_mutex_unlock(&kconsumerd_pid_mutex);
 				ret = start_kconsumerd();
 				if (ret < 0) {
 					ret = LTTCOMM_KERN_CONSUMER_FAIL;
 					goto error;
 				}
 			}
+			pthread_mutex_unlock(&kconsumerd_pid_mutex);
 		}
 		break;
 	case LTTNG_DOMAIN_UST_PID: