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kernel/irq/irqdomain.c: fix memory leak with using debugfs_lookup()
commit d83d7ed260
upstream.
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: Thomas Gleixner <tglx@linutronix.de>
Cc: stable <stable@kernel.org>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230202151554.2310273-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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parent
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commit
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1 changed files with 1 additions and 1 deletions
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@ -1913,7 +1913,7 @@ static void debugfs_add_domain_dir(struct irq_domain *d)
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static void debugfs_remove_domain_dir(struct irq_domain *d)
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{
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debugfs_remove(debugfs_lookup(d->name, domain_dir));
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debugfs_lookup_and_remove(d->name, domain_dir);
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}
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void __init irq_domain_debugfs_init(struct dentry *root)
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