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>
diff --git a/drivers/crypto/atmel-aes.c b/drivers/crypto/atmel-aes.c
index 7d1b055..9a9e1b8 100644
--- a/drivers/crypto/atmel-aes.c
+++ b/drivers/crypto/atmel-aes.c
@@ -280,16 +280,20 @@
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 @@
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);