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PM: domains: fix memory leak with using debugfs_lookup()

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[ Upstream commit 0b6200e1e9 ]

When calling debugfs_lookup() the result must have dput() called on it,
otherwise the memory will leak over time.  To make things simpler, just
call debugfs_lookup_and_remove() instead which handles all of the logic
at once.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Greg Kroah-Hartman 2023-02-02 15:15:45 +01:00
parent dc39fbd865
commit dddc132eb0
1 changed files with 1 additions and 4 deletions
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5
drivers/base/power/domain.c
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@ -217,13 +217,10 @@ static void genpd_debug_add(struct generic_pm_domain *genpd);
static void genpd_debug_remove(struct generic_pm_domain *genpd)
{
struct dentry *d;
if (!genpd_debugfs_dir)
return;
d = debugfs_lookup(genpd->name, genpd_debugfs_dir);
debugfs_remove(d);
debugfs_lookup_and_remove(genpd->name, genpd_debugfs_dir);
}
static void genpd_update_accounting(struct generic_pm_domain *genpd)