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

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[ Upstream commit a0e8c13ccd6a9a636d27353da62c2410c4eca337 ]

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>
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 16:15:15 +01:00
parent 0c2b778edd
commit e974e8f1e3
1 changed files with 1 additions and 4 deletions
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5
kernel/power/energy_model.c
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@ -72,10 +72,7 @@ static void em_debug_create_pd(struct device *dev)
static void em_debug_remove_pd(struct device *dev)
{
struct dentry *debug_dir;
debug_dir = debugfs_lookup(dev_name(dev), rootdir);
debugfs_remove_recursive(debug_dir);
debugfs_lookup_and_remove(dev_name(dev), rootdir);
}
static int __init em_debug_init(void)