video: ARM CLCD: Improve a size determination in clcdfb_probe()

Replace the specification of a data structure by a pointer dereference
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <[e-mail]>
Cc: Russell King <[e-mail]>
Signed-off-by: Bartlomiej Zolnierkiewicz <[e-mail]>

drivers/video/fbdev/amba-clcd.c

···
 		goto out;
 	}
 
-	fb = kzalloc(sizeof(struct clcd_fb), GFP_KERNEL);
+	fb = kzalloc(sizeof(*fb), GFP_KERNEL);
 	if (!fb) {
 		ret = -ENOMEM;
 		goto free_region;