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SubjectRe: [PATCH] ACPI: debug: Clean up acpi_aml_init()
On Thu, Jan 24, 2019 at 11:25:59AM +0100, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
>
> The err_exit label in acpi_aml_init() is not used any more after
> commit 9ec6dbfbdc0a ("ACPI: no need to check return value of
> debugfs_create functions"), but the other label in there is not
> necessary too, so rearrange the code to get rid of them both.
>
> No intentional functional impact.
>
> Fixes: 9ec6dbfbdc0a ("ACPI: no need to check return value of debugfs_create functions")
> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> ---
> drivers/acpi/acpi_dbg.c | 15 +++++++--------
> 1 file changed, 7 insertions(+), 8 deletions(-)
>
> Index: linux-pm/drivers/acpi/acpi_dbg.c
> ===================================================================
> --- linux-pm.orig/drivers/acpi/acpi_dbg.c
> +++ linux-pm/drivers/acpi/acpi_dbg.c
> @@ -750,29 +750,28 @@ static const struct acpi_debugger_ops ac
>
> int __init acpi_aml_init(void)
> {
> - int ret = 0;
> + int ret;
>
> /* Initialize AML IO interface */
> mutex_init(&acpi_aml_io.lock);
> init_waitqueue_head(&acpi_aml_io.wait);
> acpi_aml_io.out_crc.buf = acpi_aml_io.out_buf;
> acpi_aml_io.in_crc.buf = acpi_aml_io.in_buf;
> +
> acpi_aml_dentry = debugfs_create_file("acpidbg",
> S_IFREG | S_IRUGO | S_IWUSR,
> acpi_debugfs_dir, NULL,
> &acpi_aml_operations);
> - ret = acpi_register_debugger(THIS_MODULE, &acpi_aml_debugger);
> - if (ret)
> - goto err_fs;
> - acpi_aml_initialized = true;
>
> -err_fs:
> + ret = acpi_register_debugger(THIS_MODULE, &acpi_aml_debugger);
> if (ret) {
> debugfs_remove(acpi_aml_dentry);
> acpi_aml_dentry = NULL;
> + return ret;
> }
> -err_exit:
> - return ret;
> +
> + acpi_aml_initialized = true;
> + return 0;
> }
>

Odd that 0-day never reported this :(

Sorry about it, and thanks for the patch:

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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