media: i2c: tc358743: Only allow supported pixel fmts in set_fmt

Fix commit "media: tc358743: Return an appropriate colorspace from
tc358743_set_fmt" to ensure that the format passed in to set_fmt
is checked to be valid, and reset to the current format if not.

Signed-off-by: Dave Stevenson <[email protected]>

drivers/media/i2c/tc358743.c

@@ -1731,8 +1731,10 @@ static int tc358743_set_fmt(struct v4l2_subdev *sd,
 	u32 code = format->format.code; /* is overwritten by get_fmt */
 	int ret = tc358743_get_fmt(sd, cfg, format);
 
-	format->format.code = code;
-	format->format.colorspace = tc358743_g_colorspace(code);
+	if (code == MEDIA_BUS_FMT_RGB888_1X24 ||
+	    code == MEDIA_BUS_FMT_UYVY8_1X16)
+		format->format.code = code;
+	format->format.colorspace = tc358743_g_colorspace(format->format.code);
 
 	if (ret)
 		return ret;