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Diffstat (limited to 'xorg-server/Xi/exevents.c')
-rw-r--r--xorg-server/Xi/exevents.c35
1 files changed, 28 insertions, 7 deletions
diff --git a/xorg-server/Xi/exevents.c b/xorg-server/Xi/exevents.c
index 8172f611d..35f929731 100644
--- a/xorg-server/Xi/exevents.c
+++ b/xorg-server/Xi/exevents.c
@@ -1632,6 +1632,19 @@ SelectForWindow(DeviceIntPtr dev, WindowPtr pWin, ClientPtr client,
return Success;
}
+static void
+FreeInputClient(InputClientsPtr *other)
+{
+ free(*other);
+ *other = NULL;
+}
+
+static InputClientsPtr
+AllocInputClient(void)
+{
+ return calloc(1, sizeof(InputClients));
+}
+
int
AddExtensionClient(WindowPtr pWin, ClientPtr client, Mask mask, int mskidx)
{
@@ -1639,7 +1652,7 @@ AddExtensionClient(WindowPtr pWin, ClientPtr client, Mask mask, int mskidx)
if (!pWin->optional && !MakeWindowOptional(pWin))
return BadAlloc;
- others = calloc(1, sizeof(InputClients));
+ others = AllocInputClient();
if (!others)
return BadAlloc;
if (!pWin->optional->inputMasks && !MakeInputMasks(pWin))
@@ -1653,7 +1666,7 @@ AddExtensionClient(WindowPtr pWin, ClientPtr client, Mask mask, int mskidx)
return Success;
bail:
- free(others);
+ FreeInputClient(&others);
return BadAlloc;
}
@@ -1669,6 +1682,13 @@ MakeInputMasks(WindowPtr pWin)
return TRUE;
}
+static void
+FreeInputMask(OtherInputMasks **imask)
+{
+ free(*imask);
+ *imask = NULL;
+}
+
void
RecalculateDeviceDeliverableEvents(WindowPtr pWin)
{
@@ -1729,14 +1749,15 @@ InputClientGone(WindowPtr pWin, XID id)
if (other->resource == id) {
if (prev) {
prev->next = other->next;
- free(other);
+ FreeInputClient(&other);
} else if (!(other->next)) {
if (ShouldFreeInputMasks(pWin, TRUE)) {
- wOtherInputMasks(pWin)->inputClients = other->next;
- free(wOtherInputMasks(pWin));
+ OtherInputMasks *mask = wOtherInputMasks(pWin);
+ mask->inputClients = other->next;
+ FreeInputMask(&mask);
pWin->optional->inputMasks = (OtherInputMasks *) NULL;
CheckWindowOptionalNeed(pWin);
- free(other);
+ FreeInputClient(&other);
} else {
other->resource = FakeClientID(0);
if (!AddResource(other->resource, RT_INPUTCLIENT,
@@ -1745,7 +1766,7 @@ InputClientGone(WindowPtr pWin, XID id)
}
} else {
wOtherInputMasks(pWin)->inputClients = other->next;
- free(other);
+ FreeInputClient(&other);
}
RecalculateDeviceDeliverableEvents(pWin);
return Success;