crypto: img-hash - fix some compile warnings

GCC complains about that %u is the wrong format string for size_t and
also that "ret" is unused.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/crypto/img-hash.c b/drivers/crypto/img-hash.c
index fec61fc09f08..601ab357f661 100644
--- a/drivers/crypto/img-hash.c
+++ b/drivers/crypto/img-hash.c
@@ -192,7 +192,7 @@ static int img_hash_xmit_cpu(struct img_hash_dev *hdev, const u8 *buf,
         u32 count, len32;
         const u32 *buffer = (const u32 *)buf;
 
-        dev_dbg(hdev->dev, "xmit_cpu:  length: %u bytes\n", length);
+        dev_dbg(hdev->dev, "xmit_cpu:  length: %zu bytes\n", length);
 
         if (final)
                 hdev->flags |= DRIVER_FLAGS_FINAL;
@@ -459,7 +459,6 @@ static int img_hash_hw_init(struct img_hash_dev *hdev)
 {
         unsigned long long nbits;
         u32 u, l;
-        int ret;
 
         img_hash_write(hdev, CR_RESET, CR_RESET_SET);
         img_hash_write(hdev, CR_RESET, CR_RESET_UNSET);