X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fsoft-trigger.c;h=c92365e2baf4eb43aea24baf5115d7c871950ea0;hb=755793e991c4d429f99254f23008bfddb89d8e00;hp=27c71b611b4a82546c7c0cf35eda99a30fe40dab;hpb=1beccaed464a4d92a070988a0331fe399f9f7a7a;p=libsigrok.git

diff --git a/src/soft-trigger.c b/src/soft-trigger.c
index 27c71b61..c92365e2 100644
--- a/src/soft-trigger.c
+++ b/src/soft-trigger.c
@@ -17,8 +17,9 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <config.h>
 #include <string.h>
-#include "libsigrok.h"
+#include <libsigrok/libsigrok.h>
 #include "libsigrok-internal.h"
 
 /* @cond PRIVATE */
@@ -37,10 +38,19 @@ SR_PRIV struct soft_trigger_logic *soft_trigger_logic_new(
 	stl->unitsize = (g_slist_length(sdi->channels) + 7) / 8;
 	stl->prev_sample = g_malloc0(stl->unitsize);
 	stl->pre_trigger_size = stl->unitsize * pre_trigger_samples;
-	stl->pre_trigger_buffer = g_malloc(stl->pre_trigger_size);
+	stl->pre_trigger_buffer = g_try_malloc(stl->pre_trigger_size);
+	if (pre_trigger_samples > 0 && !stl->pre_trigger_buffer) {
+		/*
+		 * Error out if g_try_malloc() failed (or was invoked as
+		 * g_try_malloc(0)) *and* more than 0 pretrigger samples
+		 * were requested.
+		 */
+		soft_trigger_logic_free(stl);
+		return NULL;
+	}
 	stl->pre_trigger_head = stl->pre_trigger_buffer;
 
-	if (stl->pre_trigger_size > 0 && stl->pre_trigger_buffer == NULL) {
+	if (stl->pre_trigger_size > 0 && !stl->pre_trigger_buffer) {
 		soft_trigger_logic_free(stl);
 		return NULL;
 	}