fix compile warning

libsigrok4DSL/proto.h

@@ -49,7 +49,7 @@ SR_API int sr_dev_probe_name_set(const struct sr_dev_inst *sdi,
 		int probenum, const char *name);
 SR_API int sr_dev_probe_enable(const struct sr_dev_inst *sdi, int probenum,
 		gboolean state);
-SR_API int sr_dev_trigger_set(const struct sr_dev_inst *sdi, int probenum,
+SR_API int sr_dev_trigger_set(const struct sr_dev_inst *sdi, uint16_t probenum,
 		const char *trigger);
 SR_API gboolean sr_dev_has_option(const struct sr_dev_inst *sdi, int key);
 SR_API GSList *sr_dev_list(const struct sr_dev_driver *driver);

libsigrok4DSL/session_file.c

@@ -121,8 +121,10 @@ SR_API int sr_session_load(const char *filename)
 	struct zip_stat zs;
 	struct sr_dev_inst *sdi;
 	struct sr_channel *probe;
-	int ret, probenum, devcnt, version, i, j;
-	uint64_t tmp_u64, total_probes, enabled_probes, p;
+    int ret, devcnt, i, j;
+    uint16_t probenum;
+    uint64_t tmp_u64, total_probes, enabled_probes;
+    uint16_t p;
 	char **sections, **keys, *metafile, *val, s[11];
 	char probename[SR_MAX_PROBENAME_LEN + 1];