Staging: fbtbt: Move variable declarations to improve codestyle

index 9d74b23..2ec607d 100644
@@ -275,22 +275,25 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 {
 	u16 *vmem16 = (u16 *)par->info->screen_base;
 	u8 *buf = par->txbuf.buf;
+	u16 i, j, b, g, r;
 	int x, y;
 	int ret = 0;
+	s16 pixel, error_b, error_w, error, *write_pos;
+	s8 coeff;
 
 	/* buffer to convert RGB565 -> grayscale16 -> Ditherd image 1bpp */
-	signed short *convert_buf = kmalloc(par->info->var.xres *
+	s16 *convert_buf = kmalloc(par->info->var.xres *
 		par->info->var.yres * sizeof(signed short), GFP_NOIO);
-
 	fbtft_par_dbg(DEBUG_WRITE_VMEM, par, "%s()\n", __func__);
 
 	/* converting to grayscale16 */
 	for (x = 0; x < par->info->var.xres; ++x)
 		for (y = 0; y < par->info->var.yres; ++y) {
 			u16 pixel = vmem16[y *  par->info->var.xres + x];
-			u16 b = pixel & 0x1f;
-			u16 g = (pixel & (0x3f << 5)) >> 5;
-			u16 r = (pixel & (0x1f << (5 + 6))) >> (5 + 6);
+
+			b = pixel & 0x1f;
+			g = (pixel & (0x3f << 5)) >> 5;
+			r = (pixel & (0x1f << (5 + 6))) >> (5 + 6);
 
 			pixel = (299 * r + 587 * g + 114 * b) / 200;
 			if (pixel > 255)

@@ -304,12 +307,9 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 	/* Image Dithering */
 	for (x = 0; x < par->info->var.xres; ++x)
 		for (y = 0; y < par->info->var.yres; ++y) {
-			signed short pixel =
-				convert_buf[y *  par->info->var.xres + x];
-			signed short error_b = pixel - BLACK;
-			signed short error_w = pixel - WHITE;
-			signed short error;
-			u16 i, j;
+			pixel = convert_buf[y *  par->info->var.xres + x];
+			error_b = pixel - BLACK;
+			error_w = pixel - WHITE;
 
 			/* what color close? */
 			if (abs(error_b) >= abs(error_w)) {

@@ -328,8 +328,6 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 			for (i = 0; i < DIFFUSING_MATRIX_WIDTH; ++i)
 				/* diffusion matrix column */
 				for (j = 0; j < DIFFUSING_MATRIX_HEIGHT; ++j) {
-					signed short *write_pos;
-					signed char coeff;
 
 					/* skip pixels out of zone */
 					if (x + i < 0 ||