Fix missing free() in ML code (+etc tweaks)

Makefile

@@ -30,7 +30,7 @@ libcamlib.dylib: $(FILES)
 	$(CC) -shared $(FILES) -L/usr/local/lib -lusb-1.0 -o libcamlib.so
 endif
 
-%.o: %.c src/*.h
+%.o: %.c
 	$(CC) -MMD -c $(CFLAGS) $< -o $@
 
 -include src/*.d lua/*.d lua/lua-cjson/*.d

src/bind.c

@@ -19,6 +19,14 @@
 	#endif
 #endif
 
+#ifndef CAMLIB_PLATFORM
+	#ifdef WIN32
+		#define CAMLIB_PLATFORM "windows"
+	#else
+		#define CAMLIB_PLATFORM "linux"
+	#endif
+#endif
+
 // TODO: func to access these
 int bind_connected = 0;
 int bind_initialized = 0;

src/camlib.h

@@ -27,15 +27,6 @@
 void ptp_verbose_log(char *fmt, ...);
 void ptp_panic(char *fmt, ...);
 
-// Optional, used by frontend in bindings
-#ifndef CAMLIB_PLATFORM
-	#ifdef WIN32
-		#define CAMLIB_PLATFORM "windows"
-	#else
-		#define CAMLIB_PLATFORM "linux"
-	#endif
-#endif
-
 // 4mb recommended default buffer size
 #define CAMLIB_DEFAULT_SIZE 8000000
 

src/ml.c

@@ -159,7 +159,9 @@ int ptp_chdk_upload_file(struct PtpRuntime *r, char *input, char *dest) {
 		return PTP_RUNTIME_ERR;
 	}
 
-	return ptp_send_data(r, &cmd, data, size_all);
+	int rc = ptp_send_data(r, &cmd, data, size_all);
+	free(data);
+	return rc;
 }
 
 int ptp_chdk_get_version(struct PtpRuntime *r) {

test/test.c

@@ -236,7 +236,7 @@ int main() {
 	rc = test_multithread();
 	printf("Return code: %d\n", rc);
 	if (rc) return rc;
-return 0;
+
 	rc = test_eos_t6();
 	printf("Return code: %d\n", rc);
 	if (rc) return rc;