X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fstrutil.c;h=0306ea7c91f940002861e2ce114654e6a82b0b39;hb=071151b578821a5019d718ad03db81b2cef3245e;hp=54dc1f39df50123ac985a158bc3d9ca425f9f5a6;hpb=155b680da482cea2381becb73c51cfb838bff31e;p=libsigrok.git

diff --git a/src/strutil.c b/src/strutil.c
index 54dc1f39..0306ea7c 100644
--- a/src/strutil.c
+++ b/src/strutil.c
@@ -426,7 +426,7 @@ SR_API int sr_parse_sizestring(const char *sizestring, uint64_t *size)
 	} else
 		*size += frac_part;
 
-	if (*s && strcasecmp(s, "Hz"))
+	if (s && *s && strcasecmp(s, "Hz"))
 		return SR_ERR;
 
 	return SR_OK;