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i965: fix segfault on low memory conditions

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When out of memory (in at least one case, triggered by a longrunning
memory leak), this code will segfault and crash.  By checking for the
out-of-memory condition, the system can continue, and will report
the out-of-memory error later, a much preferable outcome.
(cherry picked from commit 44a4abfd4f)
This commit is contained in:
Robert Ellison 2009-05-08 14:40:38 -06:00 • committed by Ian Romanick
parent a70c45bdab
commit e15aebe10e
1 changed files with 7 additions and 0 deletions
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7
src/mesa/drivers/dri/i965/brw_wm.c
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@ -146,6 +146,13 @@ static void do_wm_prog( struct brw_context *brw,
if (c == NULL) {
brw->wm.compile_data = calloc(1, sizeof(*brw->wm.compile_data));
c = brw->wm.compile_data;
if (c == NULL) {
/* Ouch - big out of memory problem. Can't continue
* without triggering a segfault, no way to signal,
* so just return.
*/
return;
}
} else {
memset(c, 0, sizeof(*brw->wm.compile_data));
}