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modesetting: remove alloca usage again 

this slipped back in.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2012-09-17 11:48:14 +10:00
parent f8eb8c1cb4
commit e47ad8a0ae
1 changed files with 5 additions and 1 deletions
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6
hw/xfree86/drivers/modesetting/driver.c
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@ -428,10 +428,13 @@ static int dispatch_dirty_region(ScrnInfoPtr scrn,
unsigned num_cliprects = REGION_NUM_RECTS(dirty);
if (num_cliprects) {
drmModeClip *clip = alloca(num_cliprects * sizeof(drmModeClip));
drmModeClip *clip = malloc(num_cliprects * sizeof(drmModeClip));
BoxPtr rect = REGION_RECTS(dirty);
int i, ret;
if (!clip)
return -ENOMEM;
/* XXX no need for copy? */
for (i = 0; i < num_cliprects; i++, rect++) {
clip[i].x1 = rect->x1;
@ -442,6 +445,7 @@ static int dispatch_dirty_region(ScrnInfoPtr scrn,
/* TODO query connector property to see if this is needed */
ret = drmModeDirtyFB(ms->fd, fb_id, clip, num_cliprects);
free(clip);
DamageEmpty(damage);
if (ret) {
if (ret == -EINVAL)