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authorKeith Packard <keithp@keithp.com>2011-03-24 11:06:57 -0700
committerKeith Packard <keithp@keithp.com>2011-03-24 17:12:00 -0700
commit7ccbec801e9ee32fc110db730dfec674a94dea21 (patch)
treeed402cd55eca144eb011ff7253ee1fd5b0f7698d /src/intel_dri.c
parentec133abc4bd8caba15ed54e18621b816afb06981 (diff)
Recover from i830_dri2_add_frame_event out-of-memory condition
If adding either the frame or client resources fails, we need to clean up afterwards properly. First, add_frame_event needs to internally clean up after itself by undoing any partial execution. Second, the callers need to look at the return value and free the swap/flip info structure when necessary. Signed-off-by: Keith Packard <keithp@keithp.com> Reviewed-by: Julien Cristau <jcristau@debian.org>
Diffstat (limited to 'src/intel_dri.c')
-rw-r--r--src/intel_dri.c18
1 files changed, 14 insertions, 4 deletions
diff --git a/src/intel_dri.c b/src/intel_dri.c
index 3b808230..16e42f16 100644
--- a/src/intel_dri.c
+++ b/src/intel_dri.c
@@ -625,8 +625,10 @@ i830_dri2_add_frame_event(DRI2FrameEventPtr frame_event)
if (!AddResource(frame_event->client_id, frame_event_client_type, frame_event))
return FALSE;
- if (!AddResource(frame_event->drawable_id, frame_event_drawable_type, frame_event))
+ if (!AddResource(frame_event->drawable_id, frame_event_drawable_type, frame_event)) {
+ FreeResourceByType(frame_event->client_id, frame_event_client_type, TRUE);
return FALSE;
+ }
return TRUE;
}
@@ -705,7 +707,10 @@ I830DRI2ScheduleFlip(struct intel_screen_private *intel,
flip_info->event_data = data;
flip_info->frame = target_msc;
- i830_dri2_add_frame_event(flip_info);
+ if (!i830_dri2_add_frame_event(flip_info)) {
+ free(flip_info);
+ return FALSE;
+ }
/* Page flip the full screen buffer */
back_priv = back->driverPrivate;
@@ -955,11 +960,16 @@ I830DRI2ScheduleSwap(ClientPtr client, DrawablePtr draw, DRI2BufferPtr front,
swap_info->event_data = data;
swap_info->front = front;
swap_info->back = back;
+
+ if (!i830_dri2_add_frame_event(swap_info)) {
+ free(swap_info);
+ swap_info = NULL;
+ goto blit_fallback;
+ }
+
I830DRI2ReferenceBuffer(front);
I830DRI2ReferenceBuffer(back);
- i830_dri2_add_frame_event(swap_info);
-
/* Get current count */
vbl.request.type = DRM_VBLANK_RELATIVE;
if (pipe > 0)