[PATCH 10/10] digest: digest_file_window: check every digest_xxx return

[Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>]

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
 crypto/digest.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/crypto/digest.c b/crypto/digest.c
index c261f7e..ee1a321 100644
--- a/crypto/digest.c
+++ b/crypto/digest.c
@@ -178,7 +178,9 @@ int digest_file_window(struct digest *d, const char *filename,
 	if (key)
 		digest_set_key(d, key, keylen);
 
-	digest_init(d);
+	ret = digest_init(d);
+	if (ret)
+		return ret;
 
 	fd = open(filename, O_RDONLY);
 	if (fd < 0) {
@@ -222,7 +224,9 @@ int digest_file_window(struct digest *d, const char *filename,
 			goto out_free;
 		}
 
-		digest_update(d, buf, now);
+		ret = digest_update(d, buf, now);
+		if (ret)
+			goto out_free;
 		size -= now;
 		len += now;
 	}
@@ -230,7 +234,7 @@ int digest_file_window(struct digest *d, const char *filename,
 	if (sig)
 		ret = digest_verify(d, sig);
 	else
-		digest_final(d, hash);
+		ret = digest_final(d, hash);
 
 out_free:
 	if (flags)
-- 
2.1.4


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