Commit b7785e95 authored by Geert Uytterhoeven's avatar Geert Uytterhoeven
Browse files

m68k/amiga: Chip RAM - Use lookup_resource() 



Replace a custom implementation (which doesn't lock the resource tree) by a
call to lookup_resource()

Signed-off-by: default avatarGeert Uytterhoeven <geert@linux-m68k.org>
parent 1c388919

arch/m68k/amiga/chipram.c

+11 −11
Original line number Diff line number Diff line
@@ -93,21 +93,21 @@ void *amiga_chip_alloc_res(unsigned long size, struct resource *res) 
void amiga_chip_free(void *ptr)

{

	unsigned long start = ZTWO_PADDR(ptr);

	struct resource **p, *res;

	struct resource *res;

	unsigned long size;



	for (p = &chipram_res.child; (res = *p); p = &res->sibling) {

		if (res->start != start)

			continue;

		*p = res->sibling;

	res = lookup_resource(&chipram_res, start);

	if (!res) {

		pr_err("amiga_chip_free: trying to free nonexistent region at "

		       "%p\n", ptr);

		return;

	}



	size = resource_size(res);

	pr_debug("amiga_chip_free: free %lu bytes at %p\n", size, ptr);

	atomic_add(size, &chipavail);

	release_resource(res);

	kfree(res);

		return;

	}

	pr_err("amiga_chip_free: trying to free nonexistent region at %p\n",

	       ptr);

}

EXPORT_SYMBOL(amiga_chip_free);