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author | Ming Lei <tom.leiming@gmail.com> | 2009-02-06 15:40:12 (GMT) |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-03-24 23:38:25 (GMT) |
commit | 7a192ec334cab9fafe3a8665a65af398b0e24730 (patch) | |
tree | eea572863500f94d446cfded69835e188dba3447 /drivers/ide | |
parent | 6da2d377bba06c29d0bc41c8dee014164dec82a7 (diff) | |
download | linux-fsl-qoriq-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/ide')
-rw-r--r-- | drivers/ide/au1xxx-ide.c | 36 |
1 files changed, 18 insertions, 18 deletions
diff --git a/drivers/ide/au1xxx-ide.c b/drivers/ide/au1xxx-ide.c index 79a2dfe..154ec2c 100644 --- a/drivers/ide/au1xxx-ide.c +++ b/drivers/ide/au1xxx-ide.c @@ -536,9 +536,8 @@ static const struct ide_port_info au1xxx_port_info = { #endif }; -static int au_ide_probe(struct device *dev) +static int au_ide_probe(struct platform_device *dev) { - struct platform_device *pdev = to_platform_device(dev); _auide_hwif *ahwif = &auide_hwif; struct resource *res; struct ide_host *host; @@ -552,23 +551,23 @@ static int au_ide_probe(struct device *dev) #endif memset(&auide_hwif, 0, sizeof(_auide_hwif)); - ahwif->irq = platform_get_irq(pdev, 0); + ahwif->irq = platform_get_irq(dev, 0); - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + res = platform_get_resource(dev, IORESOURCE_MEM, 0); if (res == NULL) { - pr_debug("%s %d: no base address\n", DRV_NAME, pdev->id); + pr_debug("%s %d: no base address\n", DRV_NAME, dev->id); ret = -ENODEV; goto out; } if (ahwif->irq < 0) { - pr_debug("%s %d: no IRQ\n", DRV_NAME, pdev->id); + pr_debug("%s %d: no IRQ\n", DRV_NAME, dev->id); ret = -ENODEV; goto out; } if (!request_mem_region(res->start, res->end - res->start + 1, - pdev->name)) { + dev->name)) { pr_debug("%s: request_mem_region failed\n", DRV_NAME); ret = -EBUSY; goto out; @@ -583,7 +582,7 @@ static int au_ide_probe(struct device *dev) memset(&hw, 0, sizeof(hw)); auide_setup_ports(&hw, ahwif); hw.irq = ahwif->irq; - hw.dev = dev; + hw.dev = &dev->dev; hw.chipset = ide_au1xxx; ret = ide_host_add(&au1xxx_port_info, hws, &host); @@ -592,7 +591,7 @@ static int au_ide_probe(struct device *dev) auide_hwif.hwif = host->ports[0]; - dev_set_drvdata(dev, host); + platform_set_drvdata(dev, host); printk(KERN_INFO "Au1xxx IDE(builtin) configured for %s\n", mode ); @@ -600,38 +599,39 @@ static int au_ide_probe(struct device *dev) return ret; } -static int au_ide_remove(struct device *dev) +static int au_ide_remove(struct platform_device *dev) { - struct platform_device *pdev = to_platform_device(dev); struct resource *res; - struct ide_host *host = dev_get_drvdata(dev); + struct ide_host *host = platform_get_drvdata(dev); _auide_hwif *ahwif = &auide_hwif; ide_host_remove(host); iounmap((void *)ahwif->regbase); - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + res = platform_get_resource(dev, IORESOURCE_MEM, 0); release_mem_region(res->start, res->end - res->start + 1); return 0; } -static struct device_driver au1200_ide_driver = { - .name = "au1200-ide", - .bus = &platform_bus_type, +static struct platform_driver au1200_ide_driver = { + .driver = { + .name = "au1200-ide", + .owner = THIS_MODULE, + }, .probe = au_ide_probe, .remove = au_ide_remove, }; static int __init au_ide_init(void) { - return driver_register(&au1200_ide_driver); + return platform_driver_register(&au1200_ide_driver); } static void __exit au_ide_exit(void) { - driver_unregister(&au1200_ide_driver); + platform_driver_unregister(&au1200_ide_driver); } MODULE_LICENSE("GPL"); |