X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=instance.c;h=b1bfd81ce0bf2fef4281087ce5f967d3afc75061;hb=231bb99df32ae5453f08ad27f42d34126059cf4b;hp=86b826f25f9bb6656965c4522f2c99c29470114e;hpb=173f85e1072cc0ed2a1099efd7dae0b1023960f6;p=libsigrokdecode.git

diff --git a/instance.c b/instance.c
index 86b826f..b1bfd81 100644
--- a/instance.c
+++ b/instance.c
@@ -558,6 +558,10 @@ SRD_PRIV int srd_inst_decode(const struct srd_decoder_inst *di,
 		srd_dbg("empty buffer");
 		return SRD_ERR_ARG;
 	}
+	if (unitsize == 0) {
+		srd_dbg("unitsize 0");
+		return SRD_ERR_ARG;
+	}
 
 	((struct srd_decoder_inst *)di)->data_unitsize = unitsize;