Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
kernel/power/energy_model.c: 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.
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Len Brown <len.brown@intel.com>
Link: https://lore.kernel.org/r/20230202151515.2309543-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+1
-4
+1
-4
kernel/power/energy_model.c
+1
-4
kernel/power/energy_model.c
···
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static void em_debug_remove_pd(struct device *dev)
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{
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-
struct dentry *debug_dir;
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-
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-
debug_dir = debugfs_lookup(dev_name(dev), rootdir);
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debugfs_remove_recursive(debug_dir);
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+
debugfs_lookup_and_remove(dev_name(dev), rootdir);
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}
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static int __init em_debug_init(void)