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-rw-r--r--xorg-server/Xi/exevents.c35
-rw-r--r--xorg-server/Xi/xipassivegrab.c36
2 files changed, 48 insertions, 23 deletions
diff --git a/xorg-server/Xi/exevents.c b/xorg-server/Xi/exevents.c
index 53db03629..20495e74d 100644
--- a/xorg-server/Xi/exevents.c
+++ b/xorg-server/Xi/exevents.c
@@ -1628,6 +1628,19 @@ 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)
{
@@ -1635,7 +1648,7 @@ 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))
@@ -1649,7 +1662,7 @@ AddExtensionClient(WindowPtr pWin, ClientPtr client, Mask mask, int mskidx)
return Success;
bail:
- free(others);
+ FreeInputClient(&others);
return BadAlloc;
}
@@ -1665,6 +1678,13 @@ MakeInputMasks(WindowPtr pWin)
return TRUE;
}
+static void
+FreeInputMask(OtherInputMasks **imask)
+{
+ free(*imask);
+ *imask = NULL;
+}
+
void
RecalculateDeviceDeliverableEvents(WindowPtr pWin)
{
@@ -1721,14 +1741,15 @@ 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,
@@ -1737,7 +1758,7 @@ InputClientGone(WindowPtr pWin, XID id)
}
} else {
wOtherInputMasks(pWin)->inputClients = other->next;
- free(other);
+ FreeInputClient(&other);
}
RecalculateDeviceDeliverableEvents(pWin);
return Success;
diff --git a/xorg-server/Xi/xipassivegrab.c b/xorg-server/Xi/xipassivegrab.c
index 6be27f3d1..2f13a95e8 100644
--- a/xorg-server/Xi/xipassivegrab.c
+++ b/xorg-server/Xi/xipassivegrab.c
@@ -80,7 +80,6 @@ ProcXIPassiveGrabDevice(ClientPtr client)
DeviceIntPtr dev, mod_dev;
xXIPassiveGrabDeviceReply rep;
int i, ret = Success;
- uint8_t status;
uint32_t *modifiers;
xXIGrabModifierInfo *modifiers_failed;
GrabMask mask;
@@ -145,32 +144,36 @@ ProcXIPassiveGrabDevice(ClientPtr client)
if (stuff->cursor != None)
{
- status = dixLookupResourceByType(&tmp, stuff->cursor,
- RT_CURSOR, client, DixUseAccess);
- if (status != Success)
- {
- client->errorValue = stuff->cursor;
- return status;
- }
+ ret = dixLookupResourceByType(&tmp, stuff->cursor,
+ RT_CURSOR, client, DixUseAccess);
+ if (ret != Success)
+ {
+ client->errorValue = stuff->cursor;
+ goto out;
+ }
}
- status = dixLookupWindow((WindowPtr*)&tmp, stuff->grab_window, client, DixSetAttrAccess);
- if (status != Success)
- return status;
+ ret = dixLookupWindow((WindowPtr*)&tmp, stuff->grab_window, client, DixSetAttrAccess);
+ if (ret != Success)
+ goto out;
- status = CheckGrabValues(client, &param);
- if (status != Success)
- return status;
+ ret = CheckGrabValues(client, &param);
+ if (ret != Success)
+ goto out;
modifiers = (uint32_t*)&stuff[1] + stuff->mask_len;
modifiers_failed = calloc(stuff->num_modifiers, sizeof(xXIGrabModifierInfo));
- if (!modifiers_failed)
- return BadAlloc;
+ if (!modifiers_failed) {
+ ret = BadAlloc;
+ goto out;
+ }
mod_dev = (IsFloating(dev)) ? dev : GetMaster(dev, MASTER_KEYBOARD);
for (i = 0; i < stuff->num_modifiers; i++, modifiers++)
{
+ uint8_t status = Success;
+
param.modifiers = *modifiers;
switch(stuff->grab_type)
{
@@ -208,6 +211,7 @@ ProcXIPassiveGrabDevice(ClientPtr client)
WriteToClient(client, rep.length * 4, (char*)modifiers_failed);
free(modifiers_failed);
+out:
return ret;
}