diff options
| author | Julia Lawall <Julia.Lawall@lip6.fr> | 2019-01-13 12:44:51 +0300 |
|---|---|---|
| committer | Neil Armstrong <narmstrong@baylibre.com> | 2019-01-14 18:36:43 +0300 |
| commit | f672b93e4a0a4947d2e1103ed8780e01e13eadb6 (patch) | |
| tree | 5645acf162457dbc0d165666abb164064b21ec4a | |
| parent | b318e3ff7ca065d6b107e424c85a63d7a6798a69 (diff) | |
| download | linux-f672b93e4a0a4947d2e1103ed8780e01e13eadb6.tar.xz | |
drm/meson: add missing of_node_put
Add an of_node_put when the result of of_graph_get_remote_port_parent is
not available.
An of_node_put is also needed when meson_probe_remote completes. This was
present at the recursive call, but not in the call from meson_drv_probe.
The semantic match that finds this problem is as follows
(http://coccinelle.lip6.fr):
// <smpl>
@r exists@
local idexpression e;
expression x;
@@
e = of_graph_get_remote_port_parent(...);
... when != x = e
when != true e == NULL
when != of_node_put(e)
when != of_fwnode_handle(e)
(
return e;
|
*return ...;
)
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1547372691-28324-4-git-send-email-Julia.Lawall@lip6.fr
| -rw-r--r-- | drivers/gpu/drm/meson/meson_drv.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c index 3ee4d4a4ecba..b59c7570f4cb 100644 --- a/drivers/gpu/drm/meson/meson_drv.c +++ b/drivers/gpu/drm/meson/meson_drv.c @@ -388,8 +388,10 @@ static int meson_probe_remote(struct platform_device *pdev, remote_node = of_graph_get_remote_port_parent(ep); if (!remote_node || remote_node == parent || /* Ignore parent endpoint */ - !of_device_is_available(remote_node)) + !of_device_is_available(remote_node)) { + of_node_put(remote_node); continue; + } count += meson_probe_remote(pdev, match, remote, remote_node); @@ -408,10 +410,13 @@ static int meson_drv_probe(struct platform_device *pdev) for_each_endpoint_of_node(np, ep) { remote = of_graph_get_remote_port_parent(ep); - if (!remote || !of_device_is_available(remote)) + if (!remote || !of_device_is_available(remote)) { + of_node_put(remote); continue; + } count += meson_probe_remote(pdev, &match, np, remote); + of_node_put(remote); } if (count && !match) |