[PATCH] drm: Release resources with a safer function
Christophe JAILLET
christophe.jaillet at wanadoo.fr
Sun Oct 2 06:01:22 UTC 2016
We should use 'ida_simple_remove()' instead of 'ida_remove()' when freeing
resources allocated with 'ida_simple_get()'.
This as been spotted with the following coccinelle script which tries to
detect missing 'ida_simple_remove()' call in error handling paths.
///////////////
@@
expression x;
identifier l;
@@
* x = ida_simple_get(...);
...
if (...) {
...
}
...
if (...) {
...
goto l;
}
...
* l: ... when != ida_simple_remove(...);
Signed-off-by: Christophe JAILLET <christophe.jaillet at wanadoo.fr>
---
drivers/gpu/drm/drm_connector.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index 26bb78c76481..2e7430283043 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -250,10 +250,10 @@ int drm_connector_init(struct drm_device *dev,
connector->debugfs_entry = NULL;
out_put_type_id:
if (ret)
- ida_remove(connector_ida, connector->connector_type_id);
+ ida_simple_remove(connector_ida, connector->connector_type_id);
out_put_id:
if (ret)
- ida_remove(&config->connector_ida, connector->index);
+ ida_simple_remove(&config->connector_ida, connector->index);
out_put:
if (ret)
drm_mode_object_unregister(dev, &connector->base);
--
2.7.4
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