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crypto: atmel - Check for clk_prepare_enable() return value

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clk_prepare_enable() can fail so add a check for this and
return the error code if it fails.

Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
LABBE Corentin 2015-10-02 14:12:58 +02:00 committed by Herbert Xu
parent c6415a6016
commit 9d83d29954
3 changed files with 15 additions and 3 deletions
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6
drivers/crypto/atmel-aes.c
View File

@ -260,7 +260,11 @@ static struct atmel_aes_dev *atmel_aes_find_dev(struct atmel_aes_ctx *ctx)
static int atmel_aes_hw_init(struct atmel_aes_dev *dd)
{
clk_prepare_enable(dd->iclk);
int err;
err = clk_prepare_enable(dd->iclk);
if (err)
return err;
if (!(dd->flags & AES_FLAGS_INIT)) {
atmel_aes_write(dd, AES_CR, AES_CR_SWRST);

6
drivers/crypto/atmel-sha.c
View File

@ -794,7 +794,11 @@ static void atmel_sha_finish_req(struct ahash_request *req, int err)
static int atmel_sha_hw_init(struct atmel_sha_dev *dd)
{
clk_prepare_enable(dd->iclk);
int err;
err = clk_prepare_enable(dd->iclk);
if (err)
return err;
if (!(SHA_FLAGS_INIT & dd->flags)) {
atmel_sha_write(dd, SHA_CR, SHA_CR_SWRST);

6
drivers/crypto/atmel-tdes.c
View File

@ -218,7 +218,11 @@ static struct atmel_tdes_dev *atmel_tdes_find_dev(struct atmel_tdes_ctx *ctx)
static int atmel_tdes_hw_init(struct atmel_tdes_dev *dd)
{
clk_prepare_enable(dd->iclk);
int err;
err = clk_prepare_enable(dd->iclk);
if (err)
return err;
if (!(dd->flags & TDES_FLAGS_INIT)) {
atmel_tdes_write(dd, TDES_CR, TDES_CR_SWRST);