Return early if crtc or connector's debugfs root dentries are NULL.
CC: Thierry Reding thierry.reding@gmail.com CC: David Airlie airlied@linux.ie CC: Daniel Vetter daniel@ffwll.ch CC: Jonathan Hunter jonathanh@nvidia.com
Signed-off-by: Nirmoy Das nirmoy.das@amd.com --- drivers/gpu/drm/tegra/dc.c | 5 +++++ drivers/gpu/drm/tegra/dsi.c | 4 ++++ drivers/gpu/drm/tegra/hdmi.c | 5 +++++ drivers/gpu/drm/tegra/sor.c | 4 ++++ 4 files changed, 18 insertions(+)
diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c index 16c7aabb94d3..87eeda68d231 100644 --- a/drivers/gpu/drm/tegra/dc.c +++ b/drivers/gpu/drm/tegra/dc.c @@ -1623,6 +1623,11 @@ static int tegra_dc_late_register(struct drm_crtc *crtc) struct dentry *root; struct tegra_dc *dc = to_tegra_dc(crtc);
+ if (!crtc->debugfs_entry) { + dc->debugfs_files = NULL; + return 0; + } + #ifdef CONFIG_DEBUG_FS root = crtc->debugfs_entry; #else diff --git a/drivers/gpu/drm/tegra/dsi.c b/drivers/gpu/drm/tegra/dsi.c index f46d377f0c30..f0263165e261 100644 --- a/drivers/gpu/drm/tegra/dsi.c +++ b/drivers/gpu/drm/tegra/dsi.c @@ -236,6 +236,10 @@ static int tegra_dsi_late_register(struct drm_connector *connector) struct dentry *root = connector->debugfs_entry; struct tegra_dsi *dsi = to_dsi(output);
+ if (!root) { + dsi->debugfs_files = NULL; + return 0; + } dsi->debugfs_files = kmemdup(debugfs_files, sizeof(debugfs_files), GFP_KERNEL); if (!dsi->debugfs_files) diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c index e5d2a4026028..400319db0afc 100644 --- a/drivers/gpu/drm/tegra/hdmi.c +++ b/drivers/gpu/drm/tegra/hdmi.c @@ -1065,6 +1065,11 @@ static int tegra_hdmi_late_register(struct drm_connector *connector) struct dentry *root = connector->debugfs_entry; struct tegra_hdmi *hdmi = to_hdmi(output);
+ if (!root) { + hdmi->debugfs_files = NULL; + return 0; + } + hdmi->debugfs_files = kmemdup(debugfs_files, sizeof(debugfs_files), GFP_KERNEL); if (!hdmi->debugfs_files) diff --git a/drivers/gpu/drm/tegra/sor.c b/drivers/gpu/drm/tegra/sor.c index 0ea320c1092b..a8a3b0a587d9 100644 --- a/drivers/gpu/drm/tegra/sor.c +++ b/drivers/gpu/drm/tegra/sor.c @@ -1687,6 +1687,10 @@ static int tegra_sor_late_register(struct drm_connector *connector) struct dentry *root = connector->debugfs_entry; struct tegra_sor *sor = to_sor(output);
+ if (!root) { + sor->debugfs_files = NULL; + return 0; + } sor->debugfs_files = kmemdup(debugfs_files, sizeof(debugfs_files), GFP_KERNEL); if (!sor->debugfs_files) -- 2.32.0