From: Len Brown <lenb@kernel.org>
To: Durgadoss R <durgadoss.r@intel.com>
Cc: rui.zhang@intel.com, linux-acpi@vger.kernel.org
Subject: Re: [PATCH] ACPI:Fix goto flows in thermal-sys
Date: Wed, 23 Mar 2011 01:54:51 -0400 (EDT) [thread overview]
Message-ID: <alpine.LFD.2.02.1103230151240.10549@x980> (raw)
In-Reply-To: <1299106813-13726-1-git-send-email-durgadoss.r@intel.com>
On Thu, 3 Mar 2011, Durgadoss R wrote:
> This patch fixes two minor bugs in thermal_sys:
> (a) The flow of goto's in thermal_hwmon_add_sysfs.
> (b) Remove the temp*_crit only if there is a get_crit_temp defined, in
> thermal_remove_hwmon_sysfs.
2 patches for two logical changes, please.
> Signed-off-by: Durgadoss R <durgadoss.r@intel.com>
> ---
> drivers/thermal/thermal_sys.c | 13 +++++++------
> 1 files changed, 7 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/thermal/thermal_sys.c b/drivers/thermal/thermal_sys.c
> index 13c72c6..b826dfb 100644
> --- a/drivers/thermal/thermal_sys.c
> +++ b/drivers/thermal/thermal_sys.c
> @@ -495,7 +495,7 @@ thermal_add_hwmon_sysfs(struct thermal_zone_device *tz)
> dev_set_drvdata(hwmon->device, hwmon);
> result = device_create_file(hwmon->device, &dev_attr_name);
> if (result)
> - goto unregister_hwmon_device;
> + goto free_mem;
hwmon_device_register() succeeded if we got here,
so why don't we need to hwmon_device_unregister() in the error path?
thanks,
-Len Brown, Intel Open Source Technology Center
> register_sys_interface:
> tz->hwmon = hwmon;
> @@ -509,7 +509,7 @@ thermal_add_hwmon_sysfs(struct thermal_zone_device *tz)
> sysfs_attr_init(&tz->temp_input.attr.attr);
> result = device_create_file(hwmon->device, &tz->temp_input.attr);
> if (result)
> - goto unregister_hwmon_device;
> + goto unregister_name;
>
> if (tz->ops->get_crit_temp) {
> unsigned long temperature;
> @@ -523,7 +523,7 @@ thermal_add_hwmon_sysfs(struct thermal_zone_device *tz)
> result = device_create_file(hwmon->device,
> &tz->temp_crit.attr);
> if (result)
> - goto unregister_hwmon_device;
> + goto unregister_input;
> }
> }
>
> @@ -535,9 +535,9 @@ thermal_add_hwmon_sysfs(struct thermal_zone_device *tz)
>
> return 0;
>
> - unregister_hwmon_device:
> - device_remove_file(hwmon->device, &tz->temp_crit.attr);
> + unregister_input:
> device_remove_file(hwmon->device, &tz->temp_input.attr);
> + unregister_name:
> if (new_hwmon_device) {
> device_remove_file(hwmon->device, &dev_attr_name);
> hwmon_device_unregister(hwmon->device);
> @@ -556,7 +556,8 @@ thermal_remove_hwmon_sysfs(struct thermal_zone_device *tz)
>
> tz->hwmon = NULL;
> device_remove_file(hwmon->device, &tz->temp_input.attr);
> - device_remove_file(hwmon->device, &tz->temp_crit.attr);
> + if (tz->ops->get_crit_temp)
> + device_remove_file(hwmon->device, &tz->temp_crit.attr);
>
> mutex_lock(&thermal_list_lock);
> list_del(&tz->hwmon_node);
> --
> 1.7.4
>
prev parent reply other threads:[~2011-03-23 5:54 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-02 23:00 [PATCH] ACPI:Fix goto flows in thermal-sys Durgadoss R
2011-03-23 5:54 ` Len Brown [this message]
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