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authorHenrique de Moraes Holschuh <hmh@hmh.eng.br>2007-07-27 17:04:40 -0300
committerLen Brown <len.brown@intel.com>2007-08-03 15:32:58 -0400
commitac36393de6034be7266264a435360e7628849005 (patch)
treee530b57c254536aac1c71602552bbde0e71cffe3 /drivers/misc/thinkpad_acpi.h
parent7a883eaf62f4b943ebec738ce3b0796c67ef5d32 (diff)
ACPI: thinkpad-acpi: fix the module init failure path
Thomas Renninger reports that if one tries to load thinkpad-acpi in a non-thinkpad, one gets: Call Trace: [<ffffffff802fa57d>] kref_get+0x2f/0x36 [<ffffffff802f97f7>] kobject_get+0x12/0x17 [<ffffffff8036dfd7>] get_driver+0x14/0x1a [<ffffffff8036dfee>] driver_remove_file+0x11/0x32 [<ffffffff8823b9be>] :thinkpad_acpi:thinkpad_acpi_module_exit+0xa8/0xfc [<ffffffff8824b8a0>] :thinkpad_acpi:thinkpad_acpi_module_init+0x74a/0x776 [<ffffffff8024f968>] __link_module+0x0/0x25 [<ffffffff80252269>] sys_init_module+0x162c/0x178f [<ffffffff8020bc2e>] system_call+0x7e/0x83 So, track if the platform driver and its driver attributes were registered, and only deallocate them in that case. This patch is based on Thomas Renninger's patch for the issue. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Acked-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/misc/thinkpad_acpi.h')
-rw-r--r--drivers/misc/thinkpad_acpi.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/misc/thinkpad_acpi.h b/drivers/misc/thinkpad_acpi.h
index 88af089d649..eee8809a50d 100644
--- a/drivers/misc/thinkpad_acpi.h
+++ b/drivers/misc/thinkpad_acpi.h
@@ -246,6 +246,8 @@ static struct {
u16 wan:1;
u16 fan_ctrl_status_undef:1;
u16 input_device_registered:1;
+ u16 platform_drv_registered:1;
+ u16 platform_drv_attrs_registered:1;
} tp_features;
struct thinkpad_id_data {