From: Alan Jenkins <alan-jenkins@xxxxxxxxxxxxxx>
This fixes a warning when the module is unloaded on machines without SPIC.
------------[ cut here ]------------
WARNING: at drivers/base/driver.c:261 driver_unregister+0x6e/0x80()
Hardware name: OEM
Unexpected driver unregister!
Modules linked in: sony_laptop(-) rfkill af_packet i915
drm i2c_algo_bit cfbcopyarea i2c_core cfbimgblt cfbfillrect binfmt_misc
ipv6 kvm_intel kvm acpi_cpufreq cpufreq_userspace cpufreq_powersave
cpufreq_stats acpi_pad ac video output battery pci_slot sbs sbshc
container iptable_filter ip_tables x_tables ext2 fuse
snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss
snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi_event
snd_seq snd_timer snd_seq_device snd fan sg serio_raw sr_mod cdrom
soundcore button thermal processor thermal_sys floppy snd_page_alloc
pcspkr intel_agp evdev [last unloaded: asus_atk0110]
Pid: 8136, comm: modprobe Not tainted 2.6.31-rc8debug #50
Call Trace:
[<ffffffff8121ec7e>] ? driver_unregister+0x6e/0x80
[<ffffffff81047577>] warn_slowpath_common+0x87/0xb0
[<ffffffff81047624>] warn_slowpath_fmt+0x64/0x70
[<ffffffff8119a360>] ? kobject_release+0x0/0x1f0
[<ffffffff8119a267>] ? kobject_put+0x27/0x60
[<ffffffff8121d346>] ? bus_put+0x16/0x20
[<ffffffff8121d406>] ? bus_remove_driver+0xb6/0xf0
[<ffffffff8121ec7e>] driver_unregister+0x6e/0x80
[<ffffffff811cab50>] acpi_bus_unregister_driver+0x10/0x12
[<ffffffffa035e86c>] sony_laptop_exit+0x2c/0x2e [sony_laptop]
[<ffffffff8107ddc6>] sys_delete_module+0x176/0x230
[<ffffffff8107186d>] ? trace_hardirqs_on_caller+0x14d/0x1a0
[<ffffffff81350a04>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[<ffffffff8100bdab>] system_call_fastpath+0x16/0x1b
---[ end trace f638b6a59b19703e ]---
Signed-off-by: Alan Jenkins <alan-jenkins@xxxxxxxxxxxxxx>
Signed-off-by: Mattia Dongili <malattia@xxxxxxxx>
---
drivers/platform/x86/sony-laptop.c | 7 +++++--
1 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index 11fed29..2e87595 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -1405,6 +1405,8 @@ static struct sony_pic_dev spic_dev = {
.ioports = LIST_HEAD_INIT(spic_dev.ioports),
};
+static int spic_drv_registered;
+
/* Event masks */
#define SONYPI_JOGGER_MASK 0x00000001
#define SONYPI_CAPTURE_MASK 0x00000002
@@ -2919,6 +2921,7 @@ static int __init sony_laptop_init(void)
"Unable to register SPIC driver.");
goto out;
}
+ spic_drv_registered = 1;
}
result = acpi_bus_register_driver(&sony_nc_driver);
@@ -2930,7 +2933,7 @@ static int __init sony_laptop_init(void)
return 0;
out_unregister_pic:
- if (!no_spic)
+ if (spic_drv_registered)
acpi_bus_unregister_driver(&sony_pic_driver);
out:
return result;
@@ -2939,7 +2942,7 @@ out:
static void __exit sony_laptop_exit(void)
{
acpi_bus_unregister_driver(&sony_nc_driver);
- if (!no_spic)
+ if (spic_drv_registered)
acpi_bus_unregister_driver(&sony_pic_driver);
}
--
1.6.3.3
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