[PATCH] drm/amdgpu: Fix amdgpu_userq_wait_ioctl() warn missing error code 'r'

[Arvind Yadav]

To resolve the warning regarding the missing error code 'r' in
amdgpu_userq_wait_ioctl(), assign the value 'r = -EINVAL'.

Reported-by: kernel test robot <lkp at intel.com>
Reported-by: Dan Carpenter <dan.carpenter at linaro.org>
Closes: https://lore.kernel.org/r/202505080458.rnV8YfiY-lkp@intel.com/
Cc: Alex Deucher <alexander.deucher at amd.com>
Cc: Christian König <christian.koenig at amd.com>
Cc: Sunil Khatri <sunil.khatri at amd.com>
Cc: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam at amd.com>
Signed-off-by: Arvind Yadav <Arvind.Yadav at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_userq_fence.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_userq_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_userq_fence.c
index 3288c2ff692e..84b052dbdd6b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_userq_fence.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_userq_fence.c
@@ -852,8 +852,10 @@ int amdgpu_userq_wait_ioctl(struct drm_device *dev, void *data,
 		}
 
 		waitq = idr_find(&userq_mgr->userq_idr, wait_info->waitq_id);
-		if (!waitq)
+		if (!waitq) {
+			r = -EINVAL;
 			goto free_fences;
+		}
 
 		for (i = 0, cnt = 0; i < num_fences; i++) {
 			struct amdgpu_userq_fence_driver *fence_drv;
-- 
2.34.1