mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-04 08:08:54 +00:00
Code Issues Releases Wiki Activity

component: fix missed cleanup in case of devres failure

Browse source 
In try_to_bring_up_master(), we tear down the master's component list
for each error case, except for devres group failure.  Fix this
oversight by making the code less prone to such mistakes.

Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2014-04-23 10:52:17 +01:00
parent 4c834452aa
commit c334940ea2
1 changed files with 34 additions and 34 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

14
drivers/base/component.c
View file

@ -113,22 +113,22 @@ static void master_remove_components(struct master *master)
static int try_to_bring_up_master(struct master *master,
struct component *component)
{
int ret = 0;
int ret;
if (master->bound)
return 0;
if (!master->bound) {
/*
* Search the list of components, looking for components that
* belong to this master, and attach them to the master.
*/
if (master->ops->add_components(master->dev, master)) {
/* Failed to find all components */
master_remove_components(master);
ret = 0;
goto out;
}
if (component && component->master != master) {
master_remove_components(master);
ret = 0;
goto out;
}
@ -143,14 +143,14 @@ static int try_to_bring_up_master(struct master *master,
if (ret < 0) {
devres_release_group(master->dev, NULL);
dev_info(master->dev, "master bind failed: %d\n", ret);
master_remove_components(master);
goto out;
}
master->bound = true;
ret = 1;
}
return 1;
out:
master_remove_components(master);
return ret;
}