diff options
| author | Cyrille Pitchen <cyrille.pitchen@atmel.com> | 2015-12-17 17:48:37 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2015-12-23 18:19:50 +0800 |
| commit | aab0a39b281e9a26ae991f0737f2fa6f710d0dab (patch) | |
| tree | e38c1b7e2b3bc43f39bae2d383d15454e8de3d55 /drivers/crypto | |
| parent | 7f1cbbc5145fcd6f357cf8932e1d5410777f4d65 (diff) | |
crypto: atmel-aes - propagate error from atmel_aes_hw_version_init()
Before this patch atmel_aes_hw_version_init() had no returned value.
However it calls atmel_aes_hw_init(), which may fail. So check the
returned code of atmel_aes_hw_init() and propagate error if needed.
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/atmel-aes.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/crypto/atmel-aes.c b/drivers/crypto/atmel-aes.c index 7d1b055811c4..9a9e1b88a384 100644 --- a/drivers/crypto/atmel-aes.c +++ b/drivers/crypto/atmel-aes.c @@ -280,16 +280,20 @@ static inline unsigned int atmel_aes_get_version(struct atmel_aes_dev *dd) return atmel_aes_read(dd, AES_HW_VERSION) & 0x00000fff; } -static void atmel_aes_hw_version_init(struct atmel_aes_dev *dd) +static int atmel_aes_hw_version_init(struct atmel_aes_dev *dd) { - atmel_aes_hw_init(dd); + int err; + + err = atmel_aes_hw_init(dd); + if (err) + return err; dd->hw_version = atmel_aes_get_version(dd); - dev_info(dd->dev, - "version: 0x%x\n", dd->hw_version); + dev_info(dd->dev, "version: 0x%x\n", dd->hw_version); clk_disable_unprepare(dd->iclk); + return 0; } static void atmel_aes_finish_req(struct atmel_aes_dev *dd, int err) @@ -1407,7 +1411,9 @@ static int atmel_aes_probe(struct platform_device *pdev) goto res_err; } - atmel_aes_hw_version_init(aes_dd); + err = atmel_aes_hw_version_init(aes_dd); + if (err) + goto res_err; atmel_aes_get_cap(aes_dd); |