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authorDave Airlie <airlied@redhat.com>2018-03-14 01:59:16 +0100
committerDave Airlie <airlied@redhat.com>2018-03-14 01:59:16 +0100
commit0b8eeac5c6ca6dcb19cce04bf8910006ac73dbd3 (patch)
treeb883a42fa60a1a092bf4649051dbc4e3ba9677a2 /drivers/gpu/drm/drm_vblank.c
parentdrm/amd/pp: fix missing CONFIG_ACPI. (diff)
parentdrm/rockchip: Don't use atomic constructs for psr (diff)
downloadlinux-0b8eeac5c6ca6dcb19cce04bf8910006ac73dbd3.tar.xz
linux-0b8eeac5c6ca6dcb19cce04bf8910006ac73dbd3.zip
Merge tag 'drm-misc-next-2018-03-09-3' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for 4.17: UAPI Changes: plane: Add color encoding/range properties (Jyri) nouveau: Replace iturbt_709 property with color_encoding property (Ville) Core Changes: atomic: Move plane clipping into plane check helper (Ville) property: Multiple new property checks/verification (Ville) Driver Changes: rockchip: Fixes & improvements for rk3399/chromebook plus (various) sun4i: Add H3/H5 HDMI support (Jernej) i915: Add support for limited/full-range ycbcr toggling (Ville) pl111: Add bandwidth checking/limiting (Linus) Cc: Jernej Skrabec <jernej.skrabec@siol.net> Cc: Jyri Sarha <jsarha@ti.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Linus Walleij <linus.walleij@linaro.org> * tag 'drm-misc-next-2018-03-09-3' of git://anongit.freedesktop.org/drm/drm-misc: (85 commits) drm/rockchip: Don't use atomic constructs for psr drm/rockchip: analogix_dp: set psr activate/deactivate when enable/disable bridge drm/rockchip: dw_hdmi: Move HDMI vpll clock enable to bind() drm/rockchip: inno_hdmi: reorder clk_disable_unprepare call in unbind drm/rockchip: inno_hdmi: Fix error handling path. drm/rockchip: dw-mipi-dsi: Fix connector and encoder cleanup. drm/nouveau: Replace the iturbt_709 prop with the standard COLOR_ENCODING prop drm/pl111: Use max memory bandwidth for resolution drm/bridge: sii902x: Retry status read after DDI I2C drm/pl111: Handle the RealView variant separately drm/pl111: Make the default BPP a per-variant variable drm: simple_kms_helper: Fix .mode_valid() documentation bridge: Elaborate a bit on dumb VGA bridges in Kconfig drm/atomic: Add new reverse iterator over all plane state (V2) drm: Reject bad property flag combinations drm: Make property flags u32 drm/uapi: Deprecate DRM_MODE_PROP_PENDING drm: WARN when trying to add enum value > 63 to a bitmask property drm: WARN when trying add enum values to non-enum/bitmask properties drm: Reject replacing property enum values ...
Diffstat (limited to 'drivers/gpu/drm/drm_vblank.c')
-rw-r--r--drivers/gpu/drm/drm_vblank.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_vblank.c b/drivers/gpu/drm/drm_vblank.c
index c781cb426bf1..e02ddb01917b 100644
--- a/drivers/gpu/drm/drm_vblank.c
+++ b/drivers/gpu/drm/drm_vblank.c
@@ -120,6 +120,9 @@ static u32 __get_vblank_counter(struct drm_device *dev, unsigned int pipe)
if (drm_core_check_feature(dev, DRIVER_MODESET)) {
struct drm_crtc *crtc = drm_crtc_from_index(dev, pipe);
+ if (WARN_ON(!crtc))
+ return 0;
+
if (crtc->funcs->get_vblank_counter)
return crtc->funcs->get_vblank_counter(crtc);
}
@@ -318,6 +321,9 @@ static void __disable_vblank(struct drm_device *dev, unsigned int pipe)
if (drm_core_check_feature(dev, DRIVER_MODESET)) {
struct drm_crtc *crtc = drm_crtc_from_index(dev, pipe);
+ if (WARN_ON(!crtc))
+ return;
+
if (crtc->funcs->disable_vblank) {
crtc->funcs->disable_vblank(crtc);
return;
@@ -920,6 +926,9 @@ static int __enable_vblank(struct drm_device *dev, unsigned int pipe)
if (drm_core_check_feature(dev, DRIVER_MODESET)) {
struct drm_crtc *crtc = drm_crtc_from_index(dev, pipe);
+ if (WARN_ON(!crtc))
+ return 0;
+
if (crtc->funcs->enable_vblank)
return crtc->funcs->enable_vblank(crtc);
}