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| author | Ming Lei <tom.leiming@gmail.com> | 2009-02-06 18:40:12 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-03-25 02:38:25 +0300 |
| commit | 7a192ec334cab9fafe3a8665a65af398b0e24730 (patch) | |
| tree | eea572863500f94d446cfded69835e188dba3447 /drivers/scsi/a4000t.c | |
| parent | 6da2d377bba06c29d0bc41c8dee014164dec82a7 (diff) | |
| download | linux-7a192ec334cab9fafe3a8665a65af398b0e24730.tar.xz | |
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/scsi/a4000t.c')
| -rw-r--r-- | drivers/scsi/a4000t.c | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/drivers/scsi/a4000t.c b/drivers/scsi/a4000t.c index d4bda2017746..6d25aca7b412 100644 --- a/drivers/scsi/a4000t.c +++ b/drivers/scsi/a4000t.c @@ -35,7 +35,7 @@ static struct platform_device *a4000t_scsi_device; #define A4000T_SCSI_ADDR 0xdd0040 -static int __devinit a4000t_probe(struct device *dev) +static int __devinit a4000t_probe(struct platform_device *dev) { struct Scsi_Host *host; struct NCR_700_Host_Parameters *hostdata; @@ -78,7 +78,7 @@ static int __devinit a4000t_probe(struct device *dev) goto out_put_host; } - dev_set_drvdata(dev, host); + platform_set_drvdata(dev, host); scsi_scan_host(host); return 0; @@ -93,9 +93,9 @@ static int __devinit a4000t_probe(struct device *dev) return -ENODEV; } -static __devexit int a4000t_device_remove(struct device *dev) +static __devexit int a4000t_device_remove(struct platform_device *dev) { - struct Scsi_Host *host = dev_get_drvdata(dev); + struct Scsi_Host *host = platform_get_drvdata(dev); struct NCR_700_Host_Parameters *hostdata = shost_priv(host); scsi_remove_host(host); @@ -108,25 +108,27 @@ static __devexit int a4000t_device_remove(struct device *dev) return 0; } -static struct device_driver a4000t_scsi_driver = { - .name = "a4000t-scsi", - .bus = &platform_bus_type, - .probe = a4000t_probe, - .remove = __devexit_p(a4000t_device_remove), +static struct platform_driver a4000t_scsi_driver = { + .driver = { + .name = "a4000t-scsi", + .owner = THIS_MODULE, + }, + .probe = a4000t_probe, + .remove = __devexit_p(a4000t_device_remove), }; static int __init a4000t_scsi_init(void) { int err; - err = driver_register(&a4000t_scsi_driver); + err = platform_driver_register(&a4000t_scsi_driver); if (err) return err; a4000t_scsi_device = platform_device_register_simple("a4000t-scsi", -1, NULL, 0); if (IS_ERR(a4000t_scsi_device)) { - driver_unregister(&a4000t_scsi_driver); + platform_driver_register(&a4000t_scsi_driver); return PTR_ERR(a4000t_scsi_device); } @@ -136,7 +138,7 @@ static int __init a4000t_scsi_init(void) static void __exit a4000t_scsi_exit(void) { platform_device_unregister(a4000t_scsi_device); - driver_unregister(&a4000t_scsi_driver); + platform_driver_unregister(&a4000t_scsi_driver); } module_init(a4000t_scsi_init); |