video: fbdev: of: display_timing: Remove a redundant zeroing of memory

of_parse_display_timing() already call memset(0) on its 2nd argument, so
there is no need to clear it explicitly before calling this function.

Use kmalloc() instead of kzalloc() to save a few cycles.
Signed-off-by: NChristophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: NHelge Deller <deller@gmx.de>

drivers/video/of_display_timing.c

@@ -199,7 +199,7 @@ struct display_timings *of_get_display_timings(const struct device_node *np)
 		struct display_timing *dt;
 		int r;
 
-		dt = kzalloc(sizeof(*dt), GFP_KERNEL);
+		dt = kmalloc(sizeof(*dt), GFP_KERNEL);
 		if (!dt) {
 			pr_err("%pOF: could not allocate display_timing struct\n",
 				np);