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exa: more safety

This commit is contained in:
Maarten Maathuis 2009-08-08 11:32:05 +02:00
parent 8b652435cd
commit d573cc46d3
2 changed files with 2 additions and 1 deletions
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2
exa/exa.c
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@ -336,7 +336,7 @@ ExaDoPrepareAccess(DrawablePtr pDrawable, int index)
if (!offscreen) {
/* Do we need to allocate our system buffer? */
if ((pExaScr->info->flags & EXA_HANDLES_PIXMAPS) && (pExaScr->info->flags & EXA_MIXED_PIXMAPS)) {
if (!pExaPixmap->sys_ptr) {
if (!pExaPixmap->sys_ptr && !exaPixmapIsPinned(pPixmap)) {
pExaPixmap->sys_ptr = malloc(pExaPixmap->sys_pitch * pDrawable->height);
if (!pExaPixmap->sys_ptr)
FatalError("EXA: malloc failed for size %d bytes\n", pExaPixmap->sys_pitch * pDrawable->height);

1
exa/exa_mixed.c
View File

@ -82,6 +82,7 @@ exaCreatePixmap_mixed(ScreenPtr pScreen, int w, int h, int depth,
datasize = h * paddedWidth;
/* We will allocate the system pixmap later if needed. */
pPixmap->devPrivate.ptr = NULL;
pExaPixmap->sys_ptr = NULL;
pExaPixmap->sys_pitch = paddedWidth;