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| author | Ming Lei <tom.leiming@gmail.com> | 2009-02-06 23:40:12 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-03-24 16:38:25 -0700 |
| commit | 7a192ec334cab9fafe3a8665a65af398b0e24730 (patch) | |
| tree | eea572863500f94d446cfded69835e188dba3447 /drivers/pcmcia/i82365.c | |
| parent | 6da2d377bba06c29d0bc41c8dee014164dec82a7 (diff) | |
| download | linux-7a192ec334cab9fafe3a8665a65af398b0e24730.tar.bz2 | |
platform driver: fix incorrect use of 'platform_bus_type' with 'struct device_driver'
This patch fixes the bug reported in
http://bugzilla.kernel.org/show_bug.cgi?id=11681.
"Lots of device drivers register a 'struct device_driver' with
the '.bus' member set to '&platform_bus_type'. This is wrong,
since the platform_bus functions expect the 'struct device_driver'
to be wrapped up in a 'struct platform_driver' which provides
some additional callbacks (like suspend_late, resume_early).
The effect may be that platform_suspend_late() uses bogus data
outside the device_driver struct as a pointer pointer to the
device driver's suspend_late() function or other hard to
reproduce failures."(Lothar Wassmann)
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/pcmcia/i82365.c')
| -rw-r--r-- | drivers/pcmcia/i82365.c | 28 |
1 files changed, 20 insertions, 8 deletions
diff --git a/drivers/pcmcia/i82365.c b/drivers/pcmcia/i82365.c index 71653ab84890..40d4953e4b12 100644 --- a/drivers/pcmcia/i82365.c +++ b/drivers/pcmcia/i82365.c @@ -1238,6 +1238,16 @@ static int pcic_init(struct pcmcia_socket *s) return 0; } +static int i82365_drv_pcmcia_suspend(struct platform_device *dev, + pm_message_t state) +{ + return pcmcia_socket_dev_suspend(&dev->dev, state); +} + +static int i82365_drv_pcmcia_resume(struct platform_device *dev) +{ + return pcmcia_socket_dev_resume(&dev->dev); +} static struct pccard_operations pcic_operations = { .init = pcic_init, .get_status = pcic_get_status, @@ -1248,11 +1258,13 @@ static struct pccard_operations pcic_operations = { /*====================================================================*/ -static struct device_driver i82365_driver = { - .name = "i82365", - .bus = &platform_bus_type, - .suspend = pcmcia_socket_dev_suspend, - .resume = pcmcia_socket_dev_resume, +static struct platform_driver i82365_driver = { + .driver = { + .name = "i82365", + .owner = THIS_MODULE, + }, + .suspend = i82365_drv_pcmcia_suspend, + .resume = i82365_drv_pcmcia_resume, }; static struct platform_device *i82365_device; @@ -1261,7 +1273,7 @@ static int __init init_i82365(void) { int i, ret; - ret = driver_register(&i82365_driver); + ret = platform_driver_register(&i82365_driver); if (ret) goto err_out; @@ -1337,7 +1349,7 @@ err_dev_unregister: pnp_disable_dev(i82365_pnpdev); #endif err_driver_unregister: - driver_unregister(&i82365_driver); + platform_driver_unregister(&i82365_driver); err_out: return ret; } /* init_i82365 */ @@ -1365,7 +1377,7 @@ static void __exit exit_i82365(void) if (i82365_pnpdev) pnp_disable_dev(i82365_pnpdev); #endif - driver_unregister(&i82365_driver); + platform_driver_unregister(&i82365_driver); } /* exit_i82365 */ module_init(init_i82365); |