crypto: atmel - return appropriate error code

Return -ENODEV when dma_request_slave_channel_compat() fails.

Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/crypto/atmel-sha.c b/drivers/crypto/atmel-sha.c
index 3e2f41b3eaf3..42c1f7479ab6 100644
--- a/drivers/crypto/atmel-sha.c
+++ b/drivers/crypto/atmel-sha.c
@@ -2628,7 +2628,6 @@ static bool atmel_sha_filter(struct dma_chan *chan, void *slave)
 static int atmel_sha_dma_init(struct atmel_sha_dev *dd,
                                 struct crypto_platform_data *pdata)
 {
-        int err = -ENOMEM;
         dma_cap_mask_t mask_in;
 
         /* Try to grab DMA channel */
@@ -2639,7 +2638,7 @@ static int atmel_sha_dma_init(struct atmel_sha_dev *dd,
                         atmel_sha_filter, &pdata->dma_slave->rxdata, dd->dev, "tx");
         if (!dd->dma_lch_in.chan) {
                 dev_warn(dd->dev, "no DMA channel available\n");
-                return err;
+                return -ENODEV;
         }
 
         dd->dma_lch_in.dma_conf.direction = DMA_MEM_TO_DEV;