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dell-laptop: fix rfkill memory leak on unload and failure paths

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rfkill_unregister() should always be followed by rfkill_destroy().

Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Acked-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Alan Jenkins 2009-08-19 15:06:48 +01:00 committed by Len Brown
parent 71e9dc73cb
commit 4311bb230e
1 changed files with 18 additions and 12 deletions
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30
drivers/platform/x86/dell-laptop.c
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@ -268,6 +268,22 @@ err_wifi:
return ret;
}
static void dell_cleanup_rfkill(void)
{
if (wifi_rfkill) {
rfkill_unregister(wifi_rfkill);
rfkill_destroy(wifi_rfkill);
}
if (bluetooth_rfkill) {
rfkill_unregister(bluetooth_rfkill);
rfkill_destroy(bluetooth_rfkill);
}
if (wwan_rfkill) {
rfkill_unregister(wwan_rfkill);
rfkill_destroy(wwan_rfkill);
}
}
static int dell_send_intensity(struct backlight_device *bd)
{
struct calling_interface_buffer buffer;
@ -370,12 +386,7 @@ static int __init dell_init(void)
return 0;
fail_backlight:
if (wifi_rfkill)
rfkill_unregister(wifi_rfkill);
if (bluetooth_rfkill)
rfkill_unregister(bluetooth_rfkill);
if (wwan_rfkill)
rfkill_unregister(wwan_rfkill);
dell_cleanup_rfkill();
fail_rfkill:
kfree(da_tokens);
return ret;
@ -384,12 +395,7 @@ fail_rfkill:
static void __exit dell_exit(void)
{
backlight_device_unregister(dell_backlight_device);
if (wifi_rfkill)
rfkill_unregister(wifi_rfkill);
if (bluetooth_rfkill)
rfkill_unregister(bluetooth_rfkill);
if (wwan_rfkill)
rfkill_unregister(wwan_rfkill);
dell_cleanup_rfkill();
}
module_init(dell_init);