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gcancellable: add back lost NULL check in g_cancellable_cancel()

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Commit f975858e86 removed the NULL check in g_cancellable_cancel() by
accident which makes it crash when called with NULL.

Add the check back and add a test so this doesn't happen again.

Fixes #1710
This commit is contained in:
Christoph Reiter
2019-03-05 16:44:16 +01:00
parent aeb7dbad30
commit e13c646465
2 changed files with 8 additions and 1 deletions
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2
gio/gcancellable.c
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@@ -484,7 +484,7 @@ g_cancellable_cancel (GCancellable *cancellable)
{
GCancellablePrivate *priv;
if (g_cancellable_is_cancelled (cancellable))
if (cancellable == NULL || g_cancellable_is_cancelled (cancellable))
return;
priv = cancellable->priv;