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| author | Henrique de Moraes Holschuh <hmh@hmh.eng.br> | 2007-07-27 20:04:40 (GMT) |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2007-08-03 19:32:58 (GMT) |
| commit | ac36393de6034be7266264a435360e7628849005 (patch) | |
| tree | e530b57c254536aac1c71602552bbde0e71cffe3 /drivers/misc/thinkpad_acpi.h | |
| parent | 7a883eaf62f4b943ebec738ce3b0796c67ef5d32 (diff) | |
| download | linux-fsl-qoriq-ac36393de6034be7266264a435360e7628849005.tar.xz | |
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.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/misc/thinkpad_acpi.h b/drivers/misc/thinkpad_acpi.h index 88af089..eee8809 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 { |