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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-02-02 16:15:15 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2023-02-09 20:36:10 +0100
commita0e8c13ccd6a9a636d27353da62c2410c4eca337 (patch)
treeb937065cec7b61f03cc55323bf8aa0d9a0a78a31 /kernel/power
parent4ec5183ec48656cec489c49f989c508b68b518e3 (diff)
PM: EM: fix memory leak with using debugfs_lookup()
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>
Diffstat (limited to 'kernel/power')
-rw-r--r--kernel/power/energy_model.c5
1 files changed, 1 insertions, 4 deletions
diff --git a/kernel/power/energy_model.c b/kernel/power/energy_model.c
index f82111837b8d..7b44f5b89fa1 100644
--- a/kernel/power/energy_model.c
+++ b/kernel/power/energy_model.c
@@ -87,10 +87,7 @@ 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)