[PATCH] dm-crypt: fix "nocast type" warnings

From: Victor Fusco <victor@cetuc.puc-rio.br>

Fix the sparse warning "implicit cast to nocast type"

Signed-off-by: Victor Fusco <victor@cetuc.puc-rio.br>
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>

Index: linux-kj/drivers/md/dm-crypt.c
===================================================================
--- linux-kj.orig/drivers/md/dm-crypt.c	2005-10-11 18:36:39.000000000 +0400
+++ linux-kj/drivers/md/dm-crypt.c	2005-10-11 18:37:58.000000000 +0400
@@ -331,7 +331,7 @@ crypt_alloc_buffer(struct crypt_config *
 {
 	struct bio *bio;
 	unsigned int nr_iovecs = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
-	int gfp_mask = GFP_NOIO | __GFP_HIGHMEM;
+	unsigned int gfp_mask = GFP_NOIO | __GFP_HIGHMEM;
 	unsigned int i;
 
 	/*