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authorTudor-Dan Ambarus <tudor.ambarus@microchip.com>2017-10-23 18:34:39 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2017-11-03 17:11:23 +0300
commit3c88761e8a7bee9252c6ed1e2552eb0cfefa521d (patch)
tree3287e45db155891157dfeed6dcea5f1c62639d94 /drivers/crypto/atmel-sha.c
parentaba973c69e3658e3190d8983eed7dddd3c44dd1e (diff)
downloadlinux-3c88761e8a7bee9252c6ed1e2552eb0cfefa521d.tar.xz
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>
Diffstat (limited to 'drivers/crypto/atmel-sha.c')
-rw-r--r--drivers/crypto/atmel-sha.c3
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;