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DRI2: make WaitMSC error handling more consistent with ScheduleSwap 

Just make it mirror ScheduleSwap: complete the wait on any error
condition so as not to crash the client if the kernel is misbehaving.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Jesse Barnes 2010-03-08 15:42:39 -08:00
parent 6df74e61af
commit 68629b6374
1 changed files with 11 additions and 11 deletions
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22
src/i830_dri.c
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@ -862,16 +862,12 @@ I830DRI2ScheduleWaitMSC(ClientPtr client, DrawablePtr draw, CARD64 target_msc,
remainder &= 0xffffffff;
/* Drawable not visible, return immediately */
if (pipe == -1) {
DRI2WaitMSCComplete(client, draw, target_msc, 0, 0);
return TRUE;
}
if (pipe == -1)
goto out_complete;
wait_info = xcalloc(1, sizeof(DRI2FrameEventRec));
if (!wait_info) {
DRI2WaitMSCComplete(client, draw, 0, 0, 0);
return TRUE;
}
if (!wait_info)
goto out_complete;
wait_info->drawable_id = draw->id;
wait_info->client = client;
@ -886,7 +882,7 @@ I830DRI2ScheduleWaitMSC(ClientPtr client, DrawablePtr draw, CARD64 target_msc,
if (ret) {
xf86DrvMsg(scrn->scrnIndex, X_WARNING,
"get vblank counter failed: %s\n", strerror(errno));
return FALSE;
goto out_complete;
}
current_msc = vbl.reply.sequence;
@ -914,7 +910,7 @@ I830DRI2ScheduleWaitMSC(ClientPtr client, DrawablePtr draw, CARD64 target_msc,
if (ret) {
xf86DrvMsg(scrn->scrnIndex, X_WARNING,
"get vblank counter failed: %s\n", strerror(errno));
return FALSE;
goto out_complete;
}
wait_info->frame = vbl.reply.sequence;
@ -947,13 +943,17 @@ I830DRI2ScheduleWaitMSC(ClientPtr client, DrawablePtr draw, CARD64 target_msc,
if (ret) {
xf86DrvMsg(scrn->scrnIndex, X_WARNING,
"get vblank counter failed: %s\n", strerror(errno));
return FALSE;
goto out_complete;
}
wait_info->frame = vbl.reply.sequence;
DRI2BlockClient(client, draw);
return TRUE;
out_complete:
DRI2WaitMSCComplete(client, draw, target_msc, 0, 0);
return TRUE;
}
#endif