X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fcontext.c;h=b55254b4e398d0bfd55604c5fb8353dd3ba7f43a;hb=6a00837f8cb0431a2ad90974d67fae138ea97dd5;hp=c1b7410da00020dc541313326892d850e6810b28;hpb=0525e9ae15d215943d8187e7f190d5a45e723085;p=lttng-tools.git

diff --git a/src/bin/lttng-sessiond/context.c b/src/bin/lttng-sessiond/context.c
index c1b7410da..b55254b4e 100644
--- a/src/bin/lttng-sessiond/context.c
+++ b/src/bin/lttng-sessiond/context.c
@@ -201,7 +201,7 @@ int context_kernel_add(struct ltt_kernel_session *ksession,
 			LTTNG_SYMBOL_NAME_LEN);
 	kctx.u.perf_counter.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0';
 
-	if (strlen(channel_name) == 0) {
+	if (*channel_name == '\0') {
 		ret = add_kctx_all_channels(ksession, &kctx);
 		if (ret != LTTNG_OK) {
 			goto error;
@@ -241,6 +241,8 @@ int context_ust_add(struct ltt_ust_session *usess, int domain,
 	assert(ctx);
 	assert(channel_name);
 
+	rcu_read_lock();
+
 	/*
 	 * Define which channel's hashtable to use from the domain or quit if
 	 * unknown domain.
@@ -260,7 +262,7 @@ int context_ust_add(struct ltt_ust_session *usess, int domain,
 	}
 
 	/* Get UST channel if defined */
-	if (strlen(channel_name) != 0) {
+	if (channel_name[0] != '\0') {
 		uchan = trace_ust_find_channel_by_name(chan_ht, channel_name);
 		if (uchan == NULL) {
 			ret = LTTNG_ERR_UST_CHAN_NOT_FOUND;
@@ -303,5 +305,6 @@ int context_ust_add(struct ltt_ust_session *usess, int domain,
 	}
 
 error:
+	rcu_read_unlock();
 	return ret;
 }