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debugfs: update comment of debugfs_rename()
Since commit ff9fb72bc077 ("debugfs: return error values, not NULL") changed return value of debugfs_rename() in error cases from %NULL to %ERR_PTR(-ERROR), the comment of debugfs_rename should also be updated so as not to mislead readers. Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com> Link: https://lore.kernel.org/r/20230208035634.58095-1-zhengqi.arch@bytedance.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -802,8 +802,8 @@ EXPORT_SYMBOL_GPL(debugfs_lookup_and_remove);
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* exist for rename to succeed.
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*
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* This function will return a pointer to old_dentry (which is updated to
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* reflect renaming) if it succeeds. If an error occurs, %NULL will be
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* returned.
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* reflect renaming) if it succeeds. If an error occurs, %ERR_PTR(-ERROR)
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* will be returned.
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*
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* If debugfs is not enabled in the kernel, the value -%ENODEV will be
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* returned.
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