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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2008-04-24 15:28:11 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-06-02 13:49:16 +0100
commit4e5e8de0dbdeb08df2b4c15fa2b0ba2216091793 (patch)
treecda179e4e8e7eaf1984f90638fba143b6dd8b228 /drivers
parent04ba0f656f7580d8a51a5b3441e088309141b67a (diff)
[ARM] pxa: avoid kfreeing static data if platform device fails to register
When a dynamically allocated platform device is 'put', the platform device's platform_data is kfree'd. This is bad if it's pointing at static data. Use the provided function to register platform data for these devices. This also means we can mark the pcmcia ops structures as __initdata. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/pcmcia/pxa2xx_cm_x270.c11
-rw-r--r--drivers/pcmcia/pxa2xx_mainstone.c9
-rw-r--r--drivers/pcmcia/pxa2xx_sharpsl.c12
3 files changed, 19 insertions, 13 deletions
diff --git a/drivers/pcmcia/pxa2xx_cm_x270.c b/drivers/pcmcia/pxa2xx_cm_x270.c
index 4a6c020afb3..f123fce65f2 100644
--- a/drivers/pcmcia/pxa2xx_cm_x270.c
+++ b/drivers/pcmcia/pxa2xx_cm_x270.c
@@ -131,7 +131,7 @@ static void cmx270_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
}
-static struct pcmcia_low_level cmx270_pcmcia_ops = {
+static struct pcmcia_low_level cmx270_pcmcia_ops __initdata = {
.owner = THIS_MODULE,
.hw_init = cmx270_pcmcia_hw_init,
.hw_shutdown = cmx270_pcmcia_shutdown,
@@ -156,10 +156,13 @@ static int __init cmx270_pcmcia_init(void)
if (!cmx270_pcmcia_device)
return -ENOMEM;
- cmx270_pcmcia_device->dev.platform_data = &cmx270_pcmcia_ops;
+ ret = platform_device_add_data(cmx270_pcmcia_device, &cmx270_pcmcia_ops,
+ sizeof(cmx270_pcmcia_ops));
- printk(KERN_INFO "Registering cm-x270 PCMCIA interface.\n");
- ret = platform_device_add(cmx270_pcmcia_device);
+ if (ret == 0) {
+ printk(KERN_INFO "Registering cm-x270 PCMCIA interface.\n");
+ ret = platform_device_add(cmx270_pcmcia_device);
+ }
if (ret)
platform_device_put(cmx270_pcmcia_device);
diff --git a/drivers/pcmcia/pxa2xx_mainstone.c b/drivers/pcmcia/pxa2xx_mainstone.c
index 36a59960b5a..92d1cc33808 100644
--- a/drivers/pcmcia/pxa2xx_mainstone.c
+++ b/drivers/pcmcia/pxa2xx_mainstone.c
@@ -137,7 +137,7 @@ static void mst_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
{
}
-static struct pcmcia_low_level mst_pcmcia_ops = {
+static struct pcmcia_low_level mst_pcmcia_ops __initdata = {
.owner = THIS_MODULE,
.hw_init = mst_pcmcia_hw_init,
.hw_shutdown = mst_pcmcia_hw_shutdown,
@@ -161,9 +161,10 @@ static int __init mst_pcmcia_init(void)
if (!mst_pcmcia_device)
return -ENOMEM;
- mst_pcmcia_device->dev.platform_data = &mst_pcmcia_ops;
-
- ret = platform_device_add(mst_pcmcia_device);
+ ret = platform_device_add_data(mst_pcmcia_device, &mst_pcmcia_ops,
+ sizeof(mst_pcmcia_ops));
+ if (ret == 0)
+ ret = platform_device_add(mst_pcmcia_device);
if (ret)
platform_device_put(mst_pcmcia_device);
diff --git a/drivers/pcmcia/pxa2xx_sharpsl.c b/drivers/pcmcia/pxa2xx_sharpsl.c
index d5c33bd78d6..d71f93d4583 100644
--- a/drivers/pcmcia/pxa2xx_sharpsl.c
+++ b/drivers/pcmcia/pxa2xx_sharpsl.c
@@ -222,7 +222,7 @@ static void sharpsl_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
sharpsl_pcmcia_init_reset(skt);
}
-static struct pcmcia_low_level sharpsl_pcmcia_ops = {
+static struct pcmcia_low_level sharpsl_pcmcia_ops __initdata = {
.owner = THIS_MODULE,
.hw_init = sharpsl_pcmcia_hw_init,
.hw_shutdown = sharpsl_pcmcia_hw_shutdown,
@@ -261,10 +261,12 @@ static int __init sharpsl_pcmcia_init(void)
if (!sharpsl_pcmcia_device)
return -ENOMEM;
- sharpsl_pcmcia_device->dev.platform_data = &sharpsl_pcmcia_ops;
- sharpsl_pcmcia_device->dev.parent = platform_scoop_config->devs[0].dev;
-
- ret = platform_device_add(sharpsl_pcmcia_device);
+ ret = platform_device_add_data(sharpsl_pcmcia_device,
+ &sharpsl_pcmcia_ops, sizeof(sharpsl_pcmcia_ops));
+ if (ret == 0) {
+ sharpsl_pcmcia_device->dev.parent = platform_scoop_config->devs[0].dev;
+ ret = platform_device_add(sharpsl_pcmcia_device);
+ }
if (ret)
platform_device_put(sharpsl_pcmcia_device);