X-Git-Url: https://sigrok.org/gitweb/?p=libsigrokdecode.git;a=blobdiff_plain;f=instance.c;h=6b8d6b45a2d3b4d868e8e187131895f5101e98eb;hp=92959635b5e34ad95771714c921bdded3e8d0b3a;hb=37b94c205e4c1c43e77e29993108f23066cbce05;hpb=a3a2a26d2a93d1fe7a3bb2e8eb732509c8c905e6

diff --git a/instance.c b/instance.c
index 9295963..6b8d6b4 100644
--- a/instance.c
+++ b/instance.c
@@ -373,8 +373,18 @@ SRD_API struct srd_decoder_inst *srd_inst_new(struct srd_session *sess,
 		}
 		for (i = 0; i < di->dec_num_probes; i++)
 			di->dec_probemap[i] = i;
+		di->data_unitsize = (di->dec_num_probes + 7) / 8;
+		/*
+		 * Will be used to prepare a sample at every iteration
+		 * of the instance's decode() method.
+		 */
+		if (!(di->probe_samples = g_try_malloc(di->dec_num_probes))) {
+			srd_err("Failed to g_malloc() sample buffer.");
+			g_free(di->dec_probemap);
+			g_free(di);
+			return NULL;
+		}
 	}
-	di->data_unitsize = (di->dec_num_probes + 7) / 8;
 
 	/* Create a new instance of this decoder class. */
 	if (!(di->py_inst = PyObject_CallObject(dec->py_dec, NULL))) {