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authorMing Lei <tom.leiming@gmail.com>2009-02-06 18:40:12 +0300
committerGreg Kroah-Hartman <gregkh@suse.de>2009-03-25 02:38:25 +0300
commit7a192ec334cab9fafe3a8665a65af398b0e24730 (patch)
treeeea572863500f94d446cfded69835e188dba3447 /drivers/pcmcia
parent6da2d377bba06c29d0bc41c8dee014164dec82a7 (diff)
downloadlinux-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/pcmcia')
-rw-r--r--drivers/pcmcia/au1000_generic.c37
-rw-r--r--drivers/pcmcia/i82365.c28
-rw-r--r--drivers/pcmcia/m32r_cfc.c30
-rw-r--r--drivers/pcmcia/m32r_pcc.c30
-rw-r--r--drivers/pcmcia/sa1100_generic.c38
-rw-r--r--drivers/pcmcia/tcic.c30
-rw-r--r--drivers/pcmcia/vrc4171_card.c34
7 files changed, 159 insertions, 68 deletions
diff --git a/drivers/pcmcia/au1000_generic.c b/drivers/pcmcia/au1000_generic.c
index fc1de46fd20a..90013341cd5f 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 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);
diff --git a/drivers/pcmcia/m32r_cfc.c b/drivers/pcmcia/m32r_cfc.c
index 2ab4f22c21de..62b4ecc97c46 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 2f108c23dbd9..12034b41d196 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 c5b2a44b4c37..d8da5ac844e9 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 <john+@cs.cmu.edu>");
diff --git a/drivers/pcmcia/tcic.c b/drivers/pcmcia/tcic.c
index 2a613e920fd4..9ad97ea836e8 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 b2c412419059..659421d0ca46 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);