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ecore_evas_extn: Add safety checks, fixing a crash in elm_test 

See T2835 (my crash was different from the one reported).

The buffer may be initialized after the first render_pre, due to
whatever timing issue. Check in elm_test "Window Socket" and then
open several "Window Plug".

@fix
This commit is contained in:
Jean-Philippe Andre 2016-01-25 15:58:16 +09:00
parent cca830832a
commit 4d4e6fd4b1
1 changed files with 2 additions and 1 deletions
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3
src/modules/ecore_evas/engines/extn/ecore_evas_extn_buf.c
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@ -118,6 +118,7 @@ _extnbuf_data_get(Extnbuf *b, int *w, int *h, int *stride)
void *
_extnbuf_lock(Extnbuf *b, int *w, int *h, int *stride)
{
if (!b) return NULL;
if (!b->have_lock)
{
if (b->lockfd >= 0)
@ -136,7 +137,7 @@ _extnbuf_lock(Extnbuf *b, int *w, int *h, int *stride)
void
_extnbuf_unlock(Extnbuf *b)
{
if (!b->have_lock) return;
if (!b || !b->have_lock) return;
if (b->lockfd >= 0)
{
if (lockf(b->lockfd, F_ULOCK, 0) < 0)