Util: Fix excessive memory allocation when decoding a PNG

CHANGES

@@ -19,6 +19,7 @@ Bugfixes:
  - GBA: Fix warnings when creating and loading savestates
  - GBA Memory: Fix DMAs triggering two cycles early
  - GBA Hardware: Fix GPIO on big endian
+ - Util: Fix excessive memory allocation when decoding a PNG
 Misc:
  - Qt: Window size command line options are now supported
  - Qt: Increase usability of key mapper

src/util/png-io.c

@@ -52,7 +52,7 @@ png_infop PNGWriteHeader(png_structp png, unsigned width, unsigned height) {
 }
 
 bool PNGWritePixels(png_structp png, unsigned width, unsigned height, unsigned stride, const void* pixels) {
-	png_bytep row = malloc(sizeof(png_bytep) * width * 3);
+	png_bytep row = malloc(sizeof(png_byte) * width * 3);
 	if (!row) {
 		return false;
 	}