[PATCH AUTOSEL 4.14 14/17] crypto: qat - fix reuse of completion variable

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From: Marco Chiappero <marco.chiappero@xxxxxxxxx>

[ Upstream commit 3d655732b0199562267a05c7ff69ecdd11632939 ]

Use reinit_completion() to set to a clean state a completion variable,
used to coordinate the VF to PF request-response flow, before every
new VF request.

Signed-off-by: Marco Chiappero <marco.chiappero@xxxxxxxxx>
Co-developed-by: Giovanni Cabiddu <giovanni.cabiddu@xxxxxxxxx>
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@xxxxxxxxx>
Reviewed-by: Fiona Trahe <fiona.trahe@xxxxxxxxx>
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/crypto/qat/qat_common/adf_pf2vf_msg.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/crypto/qat/qat_common/adf_pf2vf_msg.c b/drivers/crypto/qat/qat_common/adf_pf2vf_msg.c
index b3875fdf6cd7..9dab2cc11fdf 100644
--- a/drivers/crypto/qat/qat_common/adf_pf2vf_msg.c
+++ b/drivers/crypto/qat/qat_common/adf_pf2vf_msg.c
@@ -361,6 +361,8 @@ static int adf_vf2pf_request_version(struct adf_accel_dev *accel_dev)
 	msg |= ADF_PFVF_COMPATIBILITY_VERSION << ADF_VF2PF_COMPAT_VER_REQ_SHIFT;
 	BUILD_BUG_ON(ADF_PFVF_COMPATIBILITY_VERSION > 255);
 
+	reinit_completion(&accel_dev->vf.iov_msg_completion);
+
 	/* Send request from VF to PF */
 	ret = adf_iov_putmsg(accel_dev, msg, 0);
 	if (ret) {
-- 
2.30.2




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