diff options
| author | LABBE Corentin <clabbe.montjoie@gmail.com> | 2015-10-02 14:12:58 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2015-10-08 21:42:21 +0800 |
| commit | 9d83d299549d0e121245d56954242750d0c14338 (patch) | |
| tree | 62abe7e8947f5b24e20371dd34b0fb9ef970c308 | |
| parent | c6415a6016bff0b547c13cadb1d5e50e9ace2be3 (diff) | |
| download | linux-stable-9d83d299549d0e121245d56954242750d0c14338.tar.gz linux-stable-9d83d299549d0e121245d56954242750d0c14338.tar.bz2 linux-stable-9d83d299549d0e121245d56954242750d0c14338.zip | |
crypto: atmel - Check for clk_prepare_enable() return value
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>
| -rw-r--r-- | drivers/crypto/atmel-aes.c | 6 | ||||
| -rw-r--r-- | drivers/crypto/atmel-sha.c | 6 | ||||
| -rw-r--r-- | drivers/crypto/atmel-tdes.c | 6 |
3 files changed, 15 insertions, 3 deletions
diff --git a/drivers/crypto/atmel-aes.c b/drivers/crypto/atmel-aes.c index 0f9a9dc06a83..de8f5da75a0f 100644 --- a/drivers/crypto/atmel-aes.c +++ b/drivers/crypto/atmel-aes.c @@ -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); diff --git a/drivers/crypto/atmel-sha.c b/drivers/crypto/atmel-sha.c index 5b35433c5399..5e6cf0891b4d 100644 --- a/drivers/crypto/atmel-sha.c +++ b/drivers/crypto/atmel-sha.c @@ -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); diff --git a/drivers/crypto/atmel-tdes.c b/drivers/crypto/atmel-tdes.c index ca2999709eb4..504e90340074 100644 --- a/drivers/crypto/atmel-tdes.c +++ b/drivers/crypto/atmel-tdes.c @@ -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); |