offb: use framebuffer_alloc() to allocate fb_info struct

Use the framebuffer_alloc() function to allocate the fb_info structure so
the structure is correctly initialized after allocation.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/video/offb.c

@@ -378,7 +378,6 @@ static void __init offb_init_fb(const char *name, const char *full_name,
 	struct fb_fix_screeninfo *fix;
 	struct fb_var_screeninfo *var;
 	struct fb_info *info;
-	int size;
 
 	if (!request_mem_region(res_start, res_size, "offb"))
 		return;
@@ -393,15 +392,12 @@ static void __init offb_init_fb(const char *name, const char *full_name,
 		return;
 	}
 
-	size = sizeof(struct fb_info) + sizeof(u32) * 16;
-
-	info = kmalloc(size, GFP_ATOMIC);
+	info = framebuffer_alloc(sizeof(u32) * 16, NULL);
 	
 	if (info == 0) {
 		release_mem_region(res_start, res_size);
 		return;
 	}
-	memset(info, 0, size);
 
 	fix = &info->fix;
 	var = &info->var;