From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christophe JAILLET Subject: [PATCH] drm: Release resources with a safer function Date: Sun, 2 Oct 2016 08:01:22 +0200 Message-ID: <1475388082-12656-1-git-send-email-christophe.jaillet@wanadoo.fr> Return-path: Sender: linux-kernel-owner@vger.kernel.org To: airlied@linux.ie Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org, Christophe JAILLET List-Id: dri-devel@lists.freedesktop.org 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 --- 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