[U-Boot] [PATCH 3/5 v4] gen: Change return type to int for hash_func_ws function pointer

[Akshay Saraswat]

This patch changes return type for hash_func_ws function pointer to
int because hash.c is the host for all the crypto algorithm requests.
Ace h/w acceleration as of now and many more to be included in future
may require a type to convey the result ("encoding success or failure")
to the caller.

Signed-off-by: Akshay Saraswat <akshay.s at samsung.com>
---
Changes since v3:
	- New patch.

 include/hash.h   | 2 +-
 include/sha1.h   | 2 +-
 include/sha256.h | 2 +-
 lib/sha1.c       | 4 +++-
 lib/sha256.c     | 4 +++-
 5 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/include/hash.h b/include/hash.h
index 34ba558..3d7200e 100644
--- a/include/hash.h
+++ b/include/hash.h
@@ -40,7 +40,7 @@ struct hash_algo {
 	 * @output:	Checksum result (length depends on algorithm)
 	 * @chunk_sz:	Trigger watchdog after processing this many bytes
 	 */
-	void (*hash_func_ws)(const unsigned char *input, unsigned int ilen,
+	int (*hash_func_ws)(const unsigned char *input, unsigned int ilen,
 		unsigned char *output, unsigned int chunk_sz);
 	int chunk_size;				/* Watchdog chunk size */
 };
diff --git a/include/sha1.h b/include/sha1.h
index da09dab..3f45b3c 100644
--- a/include/sha1.h
+++ b/include/sha1.h
@@ -88,7 +88,7 @@ void sha1_csum(const unsigned char *input, unsigned int ilen,
  * \param output   SHA-1 checksum result
  * \param chunk_sz watchdog triggering period (in bytes of input processed)
  */
-void sha1_csum_wd(const unsigned char *input, unsigned int ilen,
+int sha1_csum_wd(const unsigned char *input, unsigned int ilen,
 		unsigned char *output, unsigned int chunk_sz);
 
 /**
diff --git a/include/sha256.h b/include/sha256.h
index beadab3..07b80c8 100644
--- a/include/sha256.h
+++ b/include/sha256.h
@@ -16,7 +16,7 @@ void sha256_starts(sha256_context * ctx);
 void sha256_update(sha256_context *ctx, const uint8_t *input, uint32_t length);
 void sha256_finish(sha256_context * ctx, uint8_t digest[SHA256_SUM_LEN]);
 
-void sha256_csum_wd(const unsigned char *input, unsigned int ilen,
+int sha256_csum_wd(const unsigned char *input, unsigned int ilen,
 		unsigned char *output, unsigned int chunk_sz);
 
 #endif /* _SHA256_H */
diff --git a/lib/sha1.c b/lib/sha1.c
index a121224..f272c48 100644
--- a/lib/sha1.c
+++ b/lib/sha1.c
@@ -320,7 +320,7 @@ void sha1_csum(const unsigned char *input, unsigned int ilen,
  * Output = SHA-1( input buffer ). Trigger the watchdog every 'chunk_sz'
  * bytes of input processed.
  */
-void sha1_csum_wd(const unsigned char *input, unsigned int ilen,
+int sha1_csum_wd(const unsigned char *input, unsigned int ilen,
 		  unsigned char *output, unsigned int chunk_sz)
 {
 	sha1_context ctx;
@@ -347,6 +347,8 @@ void sha1_csum_wd(const unsigned char *input, unsigned int ilen,
 #endif
 
 	sha1_finish (&ctx, output);
+
+	return 0;
 }
 
 /*
diff --git a/lib/sha256.c b/lib/sha256.c
index ab2db48..ea16d03 100644
--- a/lib/sha256.c
+++ b/lib/sha256.c
@@ -265,7 +265,7 @@ void sha256_finish(sha256_context * ctx, uint8_t digest[32])
  * Output = SHA-256( input buffer ). Trigger the watchdog every 'chunk_sz'
  * bytes of input processed.
  */
-void sha256_csum_wd(const unsigned char *input, unsigned int ilen,
+int sha256_csum_wd(const unsigned char *input, unsigned int ilen,
 		unsigned char *output, unsigned int chunk_sz)
 {
 	sha256_context ctx;
@@ -292,4 +292,6 @@ void sha256_csum_wd(const unsigned char *input, unsigned int ilen,
 #endif
 
 	sha256_finish(&ctx, output);
+
+	return 0;
 }
-- 
1.8.0