clear-pkgs-linux-iot-lts2018/0839-media-intel-ipu4-VIRT-Fix-ipu_psys_getbuf-func-error.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Ong Hock Yu <ong.hock.yu@intel.com>
Date: Wed, 2 Jan 2019 20:04:23 +0000
Subject: [PATCH] media: intel-ipu4: [VIRT] Fix ipu_psys_getbuf func error
 return value propagation.

The psys_get_userpages function error return
value does not get propagated to user space.

Change-Id: I5538e8795d97044081a1f05ce88cdb46e819812c
Tracked-On: PKT-1644
Tracked-On: OAM-74863
Signed-off-by: Ong Hock Yu <ong.hock.yu@intel.com>
---
 drivers/media/pci/intel/virtio/intel-ipu4-para-virt-psys.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/media/pci/intel/virtio/intel-ipu4-para-virt-psys.c b/drivers/media/pci/intel/virtio/intel-ipu4-para-virt-psys.c
index d3a2801dde0f..7774b5f64c22 100644
--- a/drivers/media/pci/intel/virtio/intel-ipu4-para-virt-psys.c
+++ b/drivers/media/pci/intel/virtio/intel-ipu4-para-virt-psys.c
@@ -415,7 +415,9 @@ int ipu_psys_getbuf(struct ipu_psys_buffer *buf,
 
 	attach->psys_buf = virt_to_phys(buf);
 
-	if (psys_get_userpages(buf, &attach->map)) {
+	rval = psys_get_userpages(buf, &attach->map);
+	if (rval) {
+		req->func_ret = rval;
 		goto error_exit;
 	}
 
-- 
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