x86: clean up arch/x86/kernel/signal_32.c
[sfrench/cifs-2.6.git] / crypto / xcbc.c
index 2feb0f239c38179c579cbead01e7fe168d4ea0dd..b63b633e549ce7d42370c7747cdc1fbad1f8fcb8 100644 (file)
@@ -116,13 +116,11 @@ static int crypto_xcbc_digest_update2(struct hash_desc *pdesc,
        struct crypto_xcbc_ctx *ctx = crypto_hash_ctx_aligned(parent);
        struct crypto_cipher *tfm = ctx->child;
        int bs = crypto_hash_blocksize(parent);
-       unsigned int i = 0;
 
-       do {
-
-               struct page *pg = sg_page(&sg[i]);
-               unsigned int offset = sg[i].offset;
-               unsigned int slen = sg[i].length;
+       for (;;) {
+               struct page *pg = sg_page(sg);
+               unsigned int offset = sg->offset;
+               unsigned int slen = sg->length;
 
                if (unlikely(slen > nbytes))
                        slen = nbytes;
@@ -182,8 +180,11 @@ static int crypto_xcbc_digest_update2(struct hash_desc *pdesc,
                        offset = 0;
                        pg++;
                }
-               i++;
-       } while (nbytes>0);
+
+               if (!nbytes)
+                       break;
+               sg = scatterwalk_sg_next(sg);
+       }
 
        return 0;
 }