[PATCH -next] crypto: ux500 - fix error return code in hash_dma_final()

[Wei Yongjun]

From: Wei Yongjun <yongjun_...@trendmicro.com.cn>

Fix to return a negative error code from the error handling
case instead of 0, as returned elsewhere in this function.

Signed-off-by: Wei Yongjun <yongjun_...@trendmicro.com.cn>
---
 drivers/crypto/ux500/hash/hash_core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/crypto/ux500/hash/hash_core.c 
b/drivers/crypto/ux500/hash/hash_core.c
index 8d16d3a..d99b671 100644
--- a/drivers/crypto/ux500/hash/hash_core.c
+++ b/drivers/crypto/ux500/hash/hash_core.c
@@ -939,6 +939,7 @@ static int hash_dma_final(struct ahash_request *req)
        if (!ctx->device->dma.nents) {
                dev_err(device_data->dev, "[%s] "
                                "ctx->device->dma.nents = 0", __func__);
+               ret = ctx->device->dma.nents;
                goto out;
        }
 
@@ -946,6 +947,7 @@ static int hash_dma_final(struct ahash_request *req)
        if (bytes_written != req->nbytes) {
                dev_err(device_data->dev, "[%s] "
                                "hash_dma_write() failed!", __func__);
+               ret = bytes_written;
                goto out;
        }
 


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