crypto: qat - refactor device restart logic

Refactor the restart logic by moving it into the function
adf_dev_restart() which uses the safe function adf_dev_up() and
adf_dev_down().

This commit does not implement any functional change.

Signed-off-by: Shashank Gupta <shashank.gupta@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 18 insertions, 0 deletions

diff --git a/drivers/crypto/qat/qat_common/adf_init.c b/drivers/crypto/qat/qat_common/adf_init.c
index 988cffd0b833..11ade5d8e4a0 100644
--- a/drivers/crypto/qat/qat_common/adf_init.c
+++ b/drivers/crypto/qat/qat_common/adf_init.c
@@ -464,3 +464,21 @@ out:
 	return ret;
 }
 EXPORT_SYMBOL_GPL(adf_dev_up);
+
+int adf_dev_restart(struct adf_accel_dev *accel_dev)
+{
+	int ret = 0;
+
+	if (!accel_dev)
+		return -EFAULT;
+
+	adf_dev_down(accel_dev, false);
+
+	ret = adf_dev_up(accel_dev, false);
+	/* if device is already up return success*/
+	if (ret == -EALREADY)
+		return 0;
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(adf_dev_restart);