X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=crypto%2Fsha1_generic.c;h=00ae60eb925435efe5295a9d7315283bd258e613;hb=36ca239b245dbdec3b0c94976e956226bdd4108c;hp=0416091bf45ad3854a5987a0d05d2c227cfdaeb3;hpb=7cc88fdcff3cc7f0d5d2384ffd7f6d4ce9a745f1;p=deliverable%2Flinux.git

diff --git a/crypto/sha1_generic.c b/crypto/sha1_generic.c
index 0416091bf45a..00ae60eb9254 100644
--- a/crypto/sha1_generic.c
+++ b/crypto/sha1_generic.c
@@ -43,25 +43,26 @@ static int sha1_update(struct shash_desc *desc, const u8 *data,
 	unsigned int partial, done;
 	const u8 *src;
 
-	partial = sctx->count & 0x3f;
+	partial = sctx->count % SHA1_BLOCK_SIZE;
 	sctx->count += len;
 	done = 0;
 	src = data;
 
-	if ((partial + len) > 63) {
+	if ((partial + len) >= SHA1_BLOCK_SIZE) {
 		u32 temp[SHA_WORKSPACE_WORDS];
 
 		if (partial) {
 			done = -partial;
-			memcpy(sctx->buffer + partial, data, done + 64);
+			memcpy(sctx->buffer + partial, data,
+			       done + SHA1_BLOCK_SIZE);
 			src = sctx->buffer;
 		}
 
 		do {
 			sha_transform(sctx->state, src, temp);
-			done += 64;
+			done += SHA1_BLOCK_SIZE;
 			src = data + done;
-		} while (done + 63 < len);
+		} while (done + SHA1_BLOCK_SIZE <= len);
 
 		memset(temp, 0, sizeof(temp));
 		partial = 0;