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xfree86: Take input_lock() for xf86ScreenCheckHWCursor

This commit is contained in:
Chris Wilson 2017-01-20 09:49:19 +00:00 committed by Peter Hutterer
parent cfddd919cc
commit 3eb964e252
1 changed files with 20 additions and 7 deletions
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27
hw/xfree86/ramdac/xf86HWCurs.c
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@ -139,9 +139,14 @@ Bool
xf86CheckHWCursor(ScreenPtr pScreen, CursorPtr cursor, xf86CursorInfoPtr infoPtr)
{
ScreenPtr pSlave;
Bool use_hw_cursor = TRUE;
if (!xf86ScreenCheckHWCursor(pScreen, cursor, infoPtr))
return FALSE;
input_lock();
if (!xf86ScreenCheckHWCursor(pScreen, cursor, infoPtr)) {
use_hw_cursor = FALSE;
goto unlock;
}
/* ask each driver consuming a pixmap if it can support HW cursor */
xorg_list_for_each_entry(pSlave, &pScreen->slave_list, slave_head) {
@ -151,14 +156,22 @@ xf86CheckHWCursor(ScreenPtr pScreen, CursorPtr cursor, xf86CursorInfoPtr infoPtr
continue;
sPriv = dixLookupPrivate(&pSlave->devPrivates, xf86CursorScreenKey);
if (!sPriv) /* NULL if Option "SWCursor", possibly other conditions */
return FALSE;
if (!sPriv) { /* NULL if Option "SWCursor", possibly other conditions */
use_hw_cursor = FALSE;
break;
}
/* FALSE if HWCursor not supported by slave */
if (!xf86ScreenCheckHWCursor(pSlave, cursor, sPriv->CursorInfoPtr))
return FALSE;
if (!xf86ScreenCheckHWCursor(pSlave, cursor, sPriv->CursorInfoPtr)) {
use_hw_cursor = FALSE;
break;
}
}
return TRUE;
unlock:
input_unlock();
return use_hw_cursor;
}
static Bool