Re: [PATCH 3/5] drm/radeon: check dri root before debugfs init

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Am 08.10.21 um 11:17 schrieb Nirmoy Das:
Return early if dri minor root dentry is NULL.

CC: Alex Deucher <alexander.deucher@xxxxxxx>
CC: "Christian König" <christian.koenig@xxxxxxx>
CC: "Pan, Xinhui" <Xinhui.Pan@xxxxxxx>

Signed-off-by: Nirmoy Das <nirmoy.das@xxxxxxx>

Acked-by: Christian König <christian.koenig@xxxxxxx>

Where are the other patches from the series?

Thanks,
Christian.

---
  drivers/gpu/drm/radeon/r100.c          | 9 +++++++++
  drivers/gpu/drm/radeon/r300.c          | 3 +++
  drivers/gpu/drm/radeon/r420.c          | 3 +++
  drivers/gpu/drm/radeon/r600.c          | 3 +++
  drivers/gpu/drm/radeon/radeon_dp_mst.c | 3 +++
  drivers/gpu/drm/radeon/radeon_fence.c  | 3 +++
  drivers/gpu/drm/radeon/radeon_gem.c    | 3 +++
  drivers/gpu/drm/radeon/radeon_ib.c     | 3 +++
  drivers/gpu/drm/radeon/radeon_pm.c     | 5 ++++-
  drivers/gpu/drm/radeon/radeon_ring.c   | 3 +++
  drivers/gpu/drm/radeon/radeon_ttm.c    | 3 +++
  drivers/gpu/drm/radeon/rs400.c         | 3 +++
  drivers/gpu/drm/radeon/rv515.c         | 3 +++
  13 files changed, 46 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index 2dd85ba1faa2..ae6c95b34013 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -3059,6 +3059,9 @@ void  r100_debugfs_rbbm_init(struct radeon_device *rdev)
  #if defined(CONFIG_DEBUG_FS)
  	struct dentry *root = rdev->ddev->primary->debugfs_root;

+	if (!root)
+		return;
+
  	debugfs_create_file("r100_rbbm_info", 0444, root, rdev,
  			    &r100_debugfs_rbbm_info_fops);
  #endif
@@ -3069,6 +3072,9 @@ void r100_debugfs_cp_init(struct radeon_device *rdev)
  #if defined(CONFIG_DEBUG_FS)
  	struct dentry *root = rdev->ddev->primary->debugfs_root;

+	if (!root)
+		return;
+
  	debugfs_create_file("r100_cp_ring_info", 0444, root, rdev,
  			    &r100_debugfs_cp_ring_info_fops);
  	debugfs_create_file("r100_cp_csq_fifo", 0444, root, rdev,
@@ -3081,6 +3087,9 @@ void  r100_debugfs_mc_info_init(struct radeon_device *rdev)
  #if defined(CONFIG_DEBUG_FS)
  	struct dentry *root = rdev->ddev->primary->debugfs_root;

+	if (!root)
+		return;
+
  	debugfs_create_file("r100_mc_info", 0444, root, rdev,
  			    &r100_debugfs_mc_info_fops);
  #endif
diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
index 621ff174dff3..b22969e2394f 100644
--- a/drivers/gpu/drm/radeon/r300.c
+++ b/drivers/gpu/drm/radeon/r300.c
@@ -618,6 +618,9 @@ static void rv370_debugfs_pcie_gart_info_init(struct radeon_device *rdev)
  #if defined(CONFIG_DEBUG_FS)
  	struct dentry *root = rdev->ddev->primary->debugfs_root;

+	if (!root)
+		return;
+
  	debugfs_create_file("rv370_pcie_gart_info", 0444, root, rdev,
  			    &rv370_debugfs_pcie_gart_info_fops);
  #endif
diff --git a/drivers/gpu/drm/radeon/r420.c b/drivers/gpu/drm/radeon/r420.c
index 7e6320e8c6a0..cdb4ac3e346b 100644
--- a/drivers/gpu/drm/radeon/r420.c
+++ b/drivers/gpu/drm/radeon/r420.c
@@ -494,6 +494,9 @@ void r420_debugfs_pipes_info_init(struct radeon_device *rdev)
  #if defined(CONFIG_DEBUG_FS)
  	struct dentry *root = rdev->ddev->primary->debugfs_root;

+	if (!root)
+		return;
+
  	debugfs_create_file("r420_pipes_info", 0444, root, rdev,
  			    &r420_debugfs_pipes_info_fops);
  #endif
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index ca3fcae2adb5..d8f525cf0c3b 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -4360,6 +4360,9 @@ static void r600_debugfs_mc_info_init(struct radeon_device *rdev)
  #if defined(CONFIG_DEBUG_FS)
  	struct dentry *root = rdev->ddev->primary->debugfs_root;

+	if (!root)
+		return;
+
  	debugfs_create_file("r600_mc_info", 0444, root, rdev,
  			    &r600_debugfs_mc_info_fops);

diff --git a/drivers/gpu/drm/radeon/radeon_dp_mst.c b/drivers/gpu/drm/radeon/radeon_dp_mst.c
index ec867fa880a4..cf06da89bb7c 100644
--- a/drivers/gpu/drm/radeon/radeon_dp_mst.c
+++ b/drivers/gpu/drm/radeon/radeon_dp_mst.c
@@ -771,6 +771,9 @@ void radeon_mst_debugfs_init(struct radeon_device *rdev)
  #if defined(CONFIG_DEBUG_FS)
  	struct dentry *root = rdev->ddev->primary->debugfs_root;

+	if (!root)
+		return;
+
  	debugfs_create_file("radeon_mst_info", 0444, root, rdev,
  			    &radeon_debugfs_mst_info_fops);

diff --git a/drivers/gpu/drm/radeon/radeon_fence.c b/drivers/gpu/drm/radeon/radeon_fence.c
index 73e3117420bf..11f30349de46 100644
--- a/drivers/gpu/drm/radeon/radeon_fence.c
+++ b/drivers/gpu/drm/radeon/radeon_fence.c
@@ -1006,6 +1006,9 @@ void radeon_debugfs_fence_init(struct radeon_device *rdev)
  #if defined(CONFIG_DEBUG_FS)
  	struct dentry *root = rdev->ddev->primary->debugfs_root;

+	if (!root)
+		return;
+
  	debugfs_create_file("radeon_gpu_reset", 0444, root, rdev,
  			    &radeon_debugfs_gpu_reset_fops);
  	debugfs_create_file("radeon_fence_info", 0444, root, rdev,
diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c
index 458f92a70887..e6df1451af37 100644
--- a/drivers/gpu/drm/radeon/radeon_gem.c
+++ b/drivers/gpu/drm/radeon/radeon_gem.c
@@ -890,6 +890,9 @@ void radeon_gem_debugfs_init(struct radeon_device *rdev)
  #if defined(CONFIG_DEBUG_FS)
  	struct dentry *root = rdev->ddev->primary->debugfs_root;

+	if (!root)
+		return;
+
  	debugfs_create_file("radeon_gem_info", 0444, root, rdev,
  			    &radeon_debugfs_gem_info_fops);

diff --git a/drivers/gpu/drm/radeon/radeon_ib.c b/drivers/gpu/drm/radeon/radeon_ib.c
index 62b116727b4f..28316eb4fd49 100644
--- a/drivers/gpu/drm/radeon/radeon_ib.c
+++ b/drivers/gpu/drm/radeon/radeon_ib.c
@@ -311,6 +311,9 @@ static void radeon_debugfs_sa_init(struct radeon_device *rdev)
  #if defined(CONFIG_DEBUG_FS)
  	struct dentry *root = rdev->ddev->primary->debugfs_root;

+	if (!root)
+		return;
+
  	debugfs_create_file("radeon_sa_info", 0444, root, rdev,
  			    &radeon_debugfs_sa_info_fops);
  #endif
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index c67b6ddb29a4..c09e574d04f0 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -1958,6 +1958,9 @@ static void radeon_debugfs_pm_init(struct radeon_device *rdev)
  #if defined(CONFIG_DEBUG_FS)
  	struct dentry *root = rdev->ddev->primary->debugfs_root;

+	if (!root)
+		return;
+
  	debugfs_create_file("radeon_pm_info", 0444, root, rdev,
  			    &radeon_debugfs_pm_info_fops);

diff --git a/drivers/gpu/drm/radeon/radeon_ring.c b/drivers/gpu/drm/radeon/radeon_ring.c
index 7e207276df37..31a5b1ebf7c9 100644
--- a/drivers/gpu/drm/radeon/radeon_ring.c
+++ b/drivers/gpu/drm/radeon/radeon_ring.c
@@ -550,6 +550,9 @@ static void radeon_debugfs_ring_init(struct radeon_device *rdev, struct radeon_r
  	const char *ring_name = radeon_debugfs_ring_idx_to_name(ring->idx);
  	struct dentry *root = rdev->ddev->primary->debugfs_root;

+	if (!root)
+		return;
+
  	if (ring_name)
  		debugfs_create_file(ring_name, 0444, root, ring,
  				    &radeon_debugfs_ring_info_fops);
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index 11b21d605584..2e18ec93768d 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -942,6 +942,9 @@ static void radeon_ttm_debugfs_init(struct radeon_device *rdev)
  	struct drm_minor *minor = rdev->ddev->primary;
  	struct dentry *root = minor->debugfs_root;

+	if (!root)
+		return;
+
  	debugfs_create_file("radeon_vram", 0444, root, rdev,
  			    &radeon_ttm_vram_fops);

diff --git a/drivers/gpu/drm/radeon/rs400.c b/drivers/gpu/drm/radeon/rs400.c
index 6383f7a34bd8..b41a903a29c3 100644
--- a/drivers/gpu/drm/radeon/rs400.c
+++ b/drivers/gpu/drm/radeon/rs400.c
@@ -380,6 +380,9 @@ static void rs400_debugfs_pcie_gart_info_init(struct radeon_device *rdev)
  #if defined(CONFIG_DEBUG_FS)
  	struct dentry *root = rdev->ddev->primary->debugfs_root;

+	if (!root)
+		return;
+
  	debugfs_create_file("rs400_gart_info", 0444, root, rdev,
  			    &rs400_debugfs_gart_info_fops);
  #endif
diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c
index 63fb06e8e2d7..f39b6ab554f2 100644
--- a/drivers/gpu/drm/radeon/rv515.c
+++ b/drivers/gpu/drm/radeon/rv515.c
@@ -257,6 +257,9 @@ void rv515_debugfs(struct radeon_device *rdev)
  #if defined(CONFIG_DEBUG_FS)
  	struct dentry *root = rdev->ddev->primary->debugfs_root;

+	if (!root)
+		return;
+
  	debugfs_create_file("rv515_pipes_info", 0444, root, rdev,
  			    &rv515_debugfs_pipes_info_fops);
  	debugfs_create_file("rv515_ga_info", 0444, root, rdev,
--
2.32.0





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