6.11-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
[ Upstream commit a85df8c7b5ee2d3d4823befada42c5c41aff4cb0 ]
The iommu_paging_domain_alloc() function doesn't return NULL pointers,
it returns error pointers. Update the check to match.
Fixes: 45c690aea8ee ("drm/tegra: Use iommu_paging_domain_alloc()")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Reviewed-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/ba31cf3a-af3d-4ff1-87a8-f05aaf8c780b@stanley.mountain
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/gpu/drm/tegra/drm.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index d79c76a287f22..6a29ac1b2d219 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -1152,8 +1152,8 @@ static int host1x_drm_probe(struct host1x_device *dev)
if (host1x_drm_wants_iommu(dev) && device_iommu_mapped(dma_dev)) {
tegra->domain = iommu_paging_domain_alloc(dma_dev);
- if (!tegra->domain) {
- err = -ENOMEM;
+ if (IS_ERR(tegra->domain)) {
+ err = PTR_ERR(tegra->domain);
goto free;
}
--
2.43.0
