From 7a192ec334cab9fafe3a8665a65af398b0e24730 Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Fri, 6 Feb 2009 23:40:12 +0800 Subject: 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 Acked-by: Henrique de Moraes Holschuh Acked-by: David Brownell Signed-off-by: Greg Kroah-Hartman --- drivers/pcmcia/au1000_generic.c | 37 ++++++++++++++++++++++++------------- drivers/pcmcia/i82365.c | 28 ++++++++++++++++++++-------- drivers/pcmcia/m32r_cfc.c | 30 +++++++++++++++++++++--------- drivers/pcmcia/m32r_pcc.c | 30 +++++++++++++++++++++--------- drivers/pcmcia/sa1100_generic.c | 38 ++++++++++++++++++++++++++++---------- drivers/pcmcia/tcic.c | 30 +++++++++++++++++++++--------- drivers/pcmcia/vrc4171_card.c | 34 ++++++++++++++++++++++++---------- 7 files changed, 159 insertions(+), 68 deletions(-) (limited to 'drivers/pcmcia') diff --git a/drivers/pcmcia/au1000_generic.c b/drivers/pcmcia/au1000_generic.c index fc1de46fd20..90013341cd5 100644 --- a/drivers/pcmcia/au1000_generic.c +++ b/drivers/pcmcia/au1000_generic.c @@ -468,13 +468,13 @@ out: return ret; } -int au1x00_drv_pcmcia_remove(struct device *dev) +int au1x00_drv_pcmcia_remove(struct platform_device *dev) { - struct skt_dev_info *sinfo = dev_get_drvdata(dev); + struct skt_dev_info *sinfo = platform_get_drvdata(dev); int i; mutex_lock(&pcmcia_sockets_lock); - dev_set_drvdata(dev, NULL); + platform_set_drvdata(dev, NULL); for (i = 0; i < sinfo->nskt; i++) { struct au1000_pcmcia_socket *skt = PCMCIA_SOCKET(i); @@ -498,13 +498,13 @@ int au1x00_drv_pcmcia_remove(struct device *dev) * PCMCIA "Driver" API */ -static int au1x00_drv_pcmcia_probe(struct device *dev) +static int au1x00_drv_pcmcia_probe(struct platform_device *dev) { int i, ret = -ENODEV; mutex_lock(&pcmcia_sockets_lock); for (i=0; i < ARRAY_SIZE(au1x00_pcmcia_hw_init); i++) { - ret = au1x00_pcmcia_hw_init[i](dev); + ret = au1x00_pcmcia_hw_init[i](&dev->dev); if (ret == 0) break; } @@ -512,14 +512,26 @@ static int au1x00_drv_pcmcia_probe(struct device *dev) return ret; } +static int au1x00_drv_pcmcia_suspend(struct platform_device *dev, + pm_message_t state) +{ + return pcmcia_socket_dev_suspend(&dev->dev, state); +} + +static int au1x00_drv_pcmcia_resume(struct platform_device *dev) +{ + return pcmcia_socket_dev_resume(&dev->dev); +} -static struct device_driver au1x00_pcmcia_driver = { +static struct platform_driver au1x00_pcmcia_driver = { + .driver = { + .name = "au1x00-pcmcia", + .owner = THIS_MODULE, + }, .probe = au1x00_drv_pcmcia_probe, .remove = au1x00_drv_pcmcia_remove, - .name = "au1x00-pcmcia", - .bus = &platform_bus_type, - .suspend = pcmcia_socket_dev_suspend, - .resume = pcmcia_socket_dev_resume, + .suspend = au1x00_drv_pcmcia_suspend, + .resume = au1x00_drv_pcmcia_resume, }; @@ -533,8 +545,7 @@ static struct device_driver au1x00_pcmcia_driver = { static int __init au1x00_pcmcia_init(void) { int error = 0; - if ((error = driver_register(&au1x00_pcmcia_driver))) - return error; + error = platform_driver_register(&au1x00_pcmcia_driver); return error; } @@ -544,7 +555,7 @@ static int __init au1x00_pcmcia_init(void) */ static void __exit au1x00_pcmcia_exit(void) { - driver_unregister(&au1x00_pcmcia_driver); + platform_driver_unregister(&au1x00_pcmcia_driver); } module_init(au1x00_pcmcia_init); diff --git a/drivers/pcmcia/i82365.c b/drivers/pcmcia/i82365.c index 71653ab8489..40d4953e4b1 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); diff --git a/drivers/pcmcia/m32r_cfc.c b/drivers/pcmcia/m32r_cfc.c index 2ab4f22c21d..62b4ecc97c4 100644 --- a/drivers/pcmcia/m32r_cfc.c +++ b/drivers/pcmcia/m32r_cfc.c @@ -696,13 +696,25 @@ static struct pccard_operations pcc_operations = { .set_mem_map = pcc_set_mem_map, }; +static int cfc_drv_pcmcia_suspend(struct platform_device *dev, + pm_message_t state) +{ + return pcmcia_socket_dev_suspend(&dev->dev, state); +} + +static int cfc_drv_pcmcia_resume(struct platform_device *dev) +{ + return pcmcia_socket_dev_resume(&dev->dev); +} /*====================================================================*/ -static struct device_driver pcc_driver = { - .name = "cfc", - .bus = &platform_bus_type, - .suspend = pcmcia_socket_dev_suspend, - .resume = pcmcia_socket_dev_resume, +static struct platform_driver pcc_driver = { + .driver = { + .name = "cfc", + .owner = THIS_MODULE, + }, + .suspend = cfc_drv_pcmcia_suspend, + .resume = cfc_drv_pcmcia_resume, }; static struct platform_device pcc_device = { @@ -716,13 +728,13 @@ static int __init init_m32r_pcc(void) { int i, ret; - ret = driver_register(&pcc_driver); + ret = platform_driver_register(&pcc_driver); if (ret) return ret; ret = platform_device_register(&pcc_device); if (ret){ - driver_unregister(&pcc_driver); + platform_driver_unregister(&pcc_driver); return ret; } @@ -754,7 +766,7 @@ static int __init init_m32r_pcc(void) if (pcc_sockets == 0) { printk("socket is not found.\n"); platform_device_unregister(&pcc_device); - driver_unregister(&pcc_driver); + platform_driver_unregister(&pcc_driver); return -ENODEV; } @@ -802,7 +814,7 @@ static void __exit exit_m32r_pcc(void) if (poll_interval != 0) del_timer_sync(&poll_timer); - driver_unregister(&pcc_driver); + platform_driver_unregister(&pcc_driver); } /* exit_m32r_pcc */ module_init(init_m32r_pcc); diff --git a/drivers/pcmcia/m32r_pcc.c b/drivers/pcmcia/m32r_pcc.c index 2f108c23dbd..12034b41d19 100644 --- a/drivers/pcmcia/m32r_pcc.c +++ b/drivers/pcmcia/m32r_pcc.c @@ -672,13 +672,25 @@ static struct pccard_operations pcc_operations = { .set_mem_map = pcc_set_mem_map, }; +static int pcc_drv_pcmcia_suspend(struct platform_device *dev, + pm_message_t state) +{ + return pcmcia_socket_dev_suspend(&dev->dev, state); +} + +static int pcc_drv_pcmcia_resume(struct platform_device *dev) +{ + return pcmcia_socket_dev_resume(&dev->dev); +} /*====================================================================*/ -static struct device_driver pcc_driver = { - .name = "pcc", - .bus = &platform_bus_type, - .suspend = pcmcia_socket_dev_suspend, - .resume = pcmcia_socket_dev_resume, +static struct platform_driver pcc_driver = { + .driver = { + .name = "pcc", + .owner = THIS_MODULE, + }, + .suspend = pcc_drv_pcmcia_suspend, + .resume = pcc_drv_pcmcia_resume, }; static struct platform_device pcc_device = { @@ -692,13 +704,13 @@ static int __init init_m32r_pcc(void) { int i, ret; - ret = driver_register(&pcc_driver); + ret = platform_driver_register(&pcc_driver); if (ret) return ret; ret = platform_device_register(&pcc_device); if (ret){ - driver_unregister(&pcc_driver); + platform_driver_unregister(&pcc_driver); return ret; } @@ -715,7 +727,7 @@ static int __init init_m32r_pcc(void) if (pcc_sockets == 0) { printk("socket is not found.\n"); platform_device_unregister(&pcc_device); - driver_unregister(&pcc_driver); + platform_driver_unregister(&pcc_driver); return -ENODEV; } @@ -763,7 +775,7 @@ static void __exit exit_m32r_pcc(void) if (poll_interval != 0) del_timer_sync(&poll_timer); - driver_unregister(&pcc_driver); + platform_driver_unregister(&pcc_driver); } /* exit_m32r_pcc */ module_init(init_m32r_pcc); diff --git a/drivers/pcmcia/sa1100_generic.c b/drivers/pcmcia/sa1100_generic.c index c5b2a44b4c3..d8da5ac844e 100644 --- a/drivers/pcmcia/sa1100_generic.c +++ b/drivers/pcmcia/sa1100_generic.c @@ -65,7 +65,7 @@ static int (*sa11x0_pcmcia_hw_init[])(struct device *dev) = { #endif }; -static int sa11x0_drv_pcmcia_probe(struct device *dev) +static int sa11x0_drv_pcmcia_probe(struct platform_device *dev) { int i, ret = -ENODEV; @@ -73,7 +73,7 @@ static int sa11x0_drv_pcmcia_probe(struct device *dev) * Initialise any "on-board" PCMCIA sockets. */ for (i = 0; i < ARRAY_SIZE(sa11x0_pcmcia_hw_init); i++) { - ret = sa11x0_pcmcia_hw_init[i](dev); + ret = sa11x0_pcmcia_hw_init[i](&dev->dev); if (ret == 0) break; } @@ -81,13 +81,31 @@ static int sa11x0_drv_pcmcia_probe(struct device *dev) return ret; } -static struct device_driver sa11x0_pcmcia_driver = { +static int sa11x0_drv_pcmcia_remove(struct platform_device *dev) +{ + return soc_common_drv_pcmcia_remove(&dev->dev); +} + +static int sa11x0_drv_pcmcia_suspend(struct platform_device *dev, + pm_message_t state) +{ + return pcmcia_socket_dev_suspend(&dev->dev, state); +} + +static int sa11x0_drv_pcmcia_resume(struct platform_device *dev) +{ + return pcmcia_socket_dev_resume(&dev->dev); +} + +static struct platform_driver sa11x0_pcmcia_driver = { + .driver = { + .name = "sa11x0-pcmcia", + .owner = THIS_MODULE, + }, .probe = sa11x0_drv_pcmcia_probe, - .remove = soc_common_drv_pcmcia_remove, - .name = "sa11x0-pcmcia", - .bus = &platform_bus_type, - .suspend = pcmcia_socket_dev_suspend, - .resume = pcmcia_socket_dev_resume, + .remove = sa11x0_drv_pcmcia_remove, + .suspend = sa11x0_drv_pcmcia_suspend, + .resume = sa11x0_drv_pcmcia_resume, }; /* sa11x0_pcmcia_init() @@ -100,7 +118,7 @@ static struct device_driver sa11x0_pcmcia_driver = { */ static int __init sa11x0_pcmcia_init(void) { - return driver_register(&sa11x0_pcmcia_driver); + return platform_driver_register(&sa11x0_pcmcia_driver); } /* sa11x0_pcmcia_exit() @@ -110,7 +128,7 @@ static int __init sa11x0_pcmcia_init(void) */ static void __exit sa11x0_pcmcia_exit(void) { - driver_unregister(&sa11x0_pcmcia_driver); + platform_driver_unregister(&sa11x0_pcmcia_driver); } MODULE_AUTHOR("John Dorsey "); diff --git a/drivers/pcmcia/tcic.c b/drivers/pcmcia/tcic.c index 2a613e920fd..9ad97ea836e 100644 --- a/drivers/pcmcia/tcic.c +++ b/drivers/pcmcia/tcic.c @@ -363,13 +363,25 @@ static int __init get_tcic_id(void) return id; } +static int tcic_drv_pcmcia_suspend(struct platform_device *dev, + pm_message_t state) +{ + return pcmcia_socket_dev_suspend(&dev->dev, state); +} + +static int tcic_drv_pcmcia_resume(struct platform_device *dev) +{ + return pcmcia_socket_dev_resume(&dev->dev); +} /*====================================================================*/ -static struct device_driver tcic_driver = { - .name = "tcic-pcmcia", - .bus = &platform_bus_type, - .suspend = pcmcia_socket_dev_suspend, - .resume = pcmcia_socket_dev_resume, +static struct platform_driver tcic_driver = { + .driver = { + .name = "tcic-pcmcia", + .owner = THIS_MODULE, + }, + .suspend = tcic_drv_pcmcia_suspend, + .resume = tcic_drv_pcmcia_resume, }; static struct platform_device tcic_device = { @@ -383,7 +395,7 @@ static int __init init_tcic(void) int i, sock, ret = 0; u_int mask, scan; - if (driver_register(&tcic_driver)) + if (platform_driver_register(&tcic_driver)) return -1; printk(KERN_INFO "Databook TCIC-2 PCMCIA probe: "); @@ -391,7 +403,7 @@ static int __init init_tcic(void) if (!request_region(tcic_base, 16, "tcic-2")) { printk("could not allocate ports,\n "); - driver_unregister(&tcic_driver); + platform_driver_unregister(&tcic_driver); return -ENODEV; } else { @@ -414,7 +426,7 @@ static int __init init_tcic(void) if (sock == 0) { printk("not found.\n"); release_region(tcic_base, 16); - driver_unregister(&tcic_driver); + platform_driver_unregister(&tcic_driver); return -ENODEV; } @@ -542,7 +554,7 @@ static void __exit exit_tcic(void) } platform_device_unregister(&tcic_device); - driver_unregister(&tcic_driver); + platform_driver_unregister(&tcic_driver); } /* exit_tcic */ /*====================================================================*/ diff --git a/drivers/pcmcia/vrc4171_card.c b/drivers/pcmcia/vrc4171_card.c index b2c41241905..659421d0ca4 100644 --- a/drivers/pcmcia/vrc4171_card.c +++ b/drivers/pcmcia/vrc4171_card.c @@ -704,24 +704,37 @@ static int __devinit vrc4171_card_setup(char *options) __setup("vrc4171_card=", vrc4171_card_setup); -static struct device_driver vrc4171_card_driver = { - .name = vrc4171_card_name, - .bus = &platform_bus_type, - .suspend = pcmcia_socket_dev_suspend, - .resume = pcmcia_socket_dev_resume, +static int vrc4171_card_suspend(struct platform_device *dev, + pm_message_t state) +{ + return pcmcia_socket_dev_suspend(&dev->dev, state); +} + +static int vrc4171_card_resume(struct platform_device *dev) +{ + return pcmcia_socket_dev_resume(&dev->dev); +} + +static struct platform_driver vrc4171_card_driver = { + .driver = { + .name = vrc4171_card_name, + .owner = THIS_MODULE, + }, + .suspend = vrc4171_card_suspend, + .resume = vrc4171_card_resume, }; static int __devinit vrc4171_card_init(void) { int retval; - retval = driver_register(&vrc4171_card_driver); + retval = platform_driver_register(&vrc4171_card_driver); if (retval < 0) return retval; retval = platform_device_register(&vrc4171_card_device); if (retval < 0) { - driver_unregister(&vrc4171_card_driver); + platform_driver_unregister(&vrc4171_card_driver); return retval; } @@ -735,11 +748,12 @@ static int __devinit vrc4171_card_init(void) if (retval < 0) { vrc4171_remove_sockets(); platform_device_unregister(&vrc4171_card_device); - driver_unregister(&vrc4171_card_driver); + platform_driver_unregister(&vrc4171_card_driver); return retval; } - printk(KERN_INFO "%s, connected to IRQ %d\n", vrc4171_card_driver.name, vrc4171_irq); + printk(KERN_INFO "%s, connected to IRQ %d\n", + vrc4171_card_driver.driver.name, vrc4171_irq); return 0; } @@ -749,7 +763,7 @@ static void __devexit vrc4171_card_exit(void) free_irq(vrc4171_irq, vrc4171_sockets); vrc4171_remove_sockets(); platform_device_unregister(&vrc4171_card_device); - driver_unregister(&vrc4171_card_driver); + platform_driver_unregister(&vrc4171_card_driver); } module_init(vrc4171_card_init); -- cgit v1.2.3