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path: root/drivers/hwmon
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-rw-r--r--drivers/hwmon/Kconfig2
-rw-r--r--drivers/hwmon/asus_atk0110.c1
-rw-r--r--drivers/hwmon/coretemp.c57
-rw-r--r--drivers/hwmon/f71882fg.c32
-rw-r--r--drivers/hwmon/fschmd.c6
-rw-r--r--drivers/hwmon/lis3lv02d.c4
-rw-r--r--drivers/hwmon/pkgtemp.c23
-rw-r--r--drivers/hwmon/w83793.c6
8 files changed, 73 insertions, 58 deletions
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 4d4d09bdec0a..97499d00615a 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -409,7 +409,7 @@ config SENSORS_CORETEMP
config SENSORS_PKGTEMP
tristate "Intel processor package temperature sensor"
- depends on X86 && PCI && EXPERIMENTAL
+ depends on X86 && EXPERIMENTAL
help
If you say yes here you get support for the package level temperature
sensor inside your CPU. Check documentation/driver for details.
diff --git a/drivers/hwmon/asus_atk0110.c b/drivers/hwmon/asus_atk0110.c
index 653db1bda934..23b8555215d2 100644
--- a/drivers/hwmon/asus_atk0110.c
+++ b/drivers/hwmon/asus_atk0110.c
@@ -762,6 +762,7 @@ static const struct file_operations atk_debugfs_ggrp_fops = {
.read = atk_debugfs_ggrp_read,
.open = atk_debugfs_ggrp_open,
.release = atk_debugfs_ggrp_release,
+ .llseek = no_llseek,
};
static void atk_debugfs_init(struct atk_data *data)
diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
index de8111114f46..a23b17a78ace 100644
--- a/drivers/hwmon/coretemp.c
+++ b/drivers/hwmon/coretemp.c
@@ -36,6 +36,7 @@
#include <linux/pci.h>
#include <asm/msr.h>
#include <asm/processor.h>
+#include <asm/smp.h>
#define DRVNAME "coretemp"
@@ -423,9 +424,18 @@ static int __cpuinit coretemp_device_add(unsigned int cpu)
int err;
struct platform_device *pdev;
struct pdev_entry *pdev_entry;
-#ifdef CONFIG_SMP
struct cpuinfo_x86 *c = &cpu_data(cpu);
-#endif
+
+ /*
+ * CPUID.06H.EAX[0] indicates whether the CPU has thermal
+ * sensors. We check this bit only, all the early CPUs
+ * without thermal sensors will be filtered out.
+ */
+ if (!cpu_has(c, X86_FEATURE_DTS)) {
+ printk(KERN_INFO DRVNAME ": CPU (model=0x%x)"
+ " has no thermal sensor.\n", c->x86_model);
+ return 0;
+ }
mutex_lock(&pdev_list_mutex);
@@ -482,14 +492,22 @@ exit:
static void coretemp_device_remove(unsigned int cpu)
{
- struct pdev_entry *p, *n;
+ struct pdev_entry *p;
+ unsigned int i;
+
mutex_lock(&pdev_list_mutex);
- list_for_each_entry_safe(p, n, &pdev_list, list) {
- if (p->cpu == cpu) {
- platform_device_unregister(p->pdev);
- list_del(&p->list);
- kfree(p);
- }
+ list_for_each_entry(p, &pdev_list, list) {
+ if (p->cpu != cpu)
+ continue;
+
+ platform_device_unregister(p->pdev);
+ list_del(&p->list);
+ mutex_unlock(&pdev_list_mutex);
+ kfree(p);
+ for_each_cpu(i, cpu_sibling_mask(cpu))
+ if (i != cpu && !coretemp_device_add(i))
+ break;
+ return;
}
mutex_unlock(&pdev_list_mutex);
}
@@ -527,30 +545,21 @@ static int __init coretemp_init(void)
if (err)
goto exit;
- for_each_online_cpu(i) {
- struct cpuinfo_x86 *c = &cpu_data(i);
- /*
- * CPUID.06H.EAX[0] indicates whether the CPU has thermal
- * sensors. We check this bit only, all the early CPUs
- * without thermal sensors will be filtered out.
- */
- if (c->cpuid_level >= 6 && (cpuid_eax(0x06) & 0x01))
- coretemp_device_add(i);
- else {
- printk(KERN_INFO DRVNAME ": CPU (model=0x%x)"
- " has no thermal sensor.\n", c->x86_model);
- }
- }
+ for_each_online_cpu(i)
+ coretemp_device_add(i);
+
+#ifndef CONFIG_HOTPLUG_CPU
if (list_empty(&pdev_list)) {
err = -ENODEV;
goto exit_driver_unreg;
}
+#endif
register_hotcpu_notifier(&coretemp_cpu_notifier);
return 0;
-exit_driver_unreg:
#ifndef CONFIG_HOTPLUG_CPU
+exit_driver_unreg:
platform_driver_unregister(&coretemp_driver);
#endif
exit:
diff --git a/drivers/hwmon/f71882fg.c b/drivers/hwmon/f71882fg.c
index 537841ef44b9..75afb3b0e076 100644
--- a/drivers/hwmon/f71882fg.c
+++ b/drivers/hwmon/f71882fg.c
@@ -111,7 +111,7 @@ static struct platform_device *f71882fg_pdev;
/* Super-I/O Function prototypes */
static inline int superio_inb(int base, int reg);
static inline int superio_inw(int base, int reg);
-static inline void superio_enter(int base);
+static inline int superio_enter(int base);
static inline void superio_select(int base, int ld);
static inline void superio_exit(int base);
@@ -861,11 +861,20 @@ static int superio_inw(int base, int reg)
return val;
}
-static inline void superio_enter(int base)
+static inline int superio_enter(int base)
{
+ /* Don't step on other drivers' I/O space by accident */
+ if (!request_muxed_region(base, 2, DRVNAME)) {
+ printk(KERN_ERR DRVNAME ": I/O address 0x%04x already in use\n",
+ base);
+ return -EBUSY;
+ }
+
/* according to the datasheet the key must be send twice! */
outb(SIO_UNLOCK_KEY, base);
outb(SIO_UNLOCK_KEY, base);
+
+ return 0;
}
static inline void superio_select(int base, int ld)
@@ -877,6 +886,7 @@ static inline void superio_select(int base, int ld)
static inline void superio_exit(int base)
{
outb(SIO_LOCK_KEY, base);
+ release_region(base, 2);
}
static inline int fan_from_reg(u16 reg)
@@ -2175,21 +2185,15 @@ static int f71882fg_remove(struct platform_device *pdev)
static int __init f71882fg_find(int sioaddr, unsigned short *address,
struct f71882fg_sio_data *sio_data)
{
- int err = -ENODEV;
u16 devid;
-
- /* Don't step on other drivers' I/O space by accident */
- if (!request_region(sioaddr, 2, DRVNAME)) {
- printk(KERN_ERR DRVNAME ": I/O address 0x%04x already in use\n",
- (int)sioaddr);
- return -EBUSY;
- }
-
- superio_enter(sioaddr);
+ int err = superio_enter(sioaddr);
+ if (err)
+ return err;
devid = superio_inw(sioaddr, SIO_REG_MANID);
if (devid != SIO_FINTEK_ID) {
pr_debug(DRVNAME ": Not a Fintek device\n");
+ err = -ENODEV;
goto exit;
}
@@ -2213,6 +2217,7 @@ static int __init f71882fg_find(int sioaddr, unsigned short *address,
default:
printk(KERN_INFO DRVNAME ": Unsupported Fintek device: %04x\n",
(unsigned int)devid);
+ err = -ENODEV;
goto exit;
}
@@ -2223,12 +2228,14 @@ static int __init f71882fg_find(int sioaddr, unsigned short *address,
if (!(superio_inb(sioaddr, SIO_REG_ENABLE) & 0x01)) {
printk(KERN_WARNING DRVNAME ": Device not activated\n");
+ err = -ENODEV;
goto exit;
}
*address = superio_inw(sioaddr, SIO_REG_ADDR);
if (*address == 0) {
printk(KERN_WARNING DRVNAME ": Base address not set\n");
+ err = -ENODEV;
goto exit;
}
*address &= ~(REGION_LENGTH - 1); /* Ignore 3 LSB */
@@ -2239,7 +2246,6 @@ static int __init f71882fg_find(int sioaddr, unsigned short *address,
(int)superio_inb(sioaddr, SIO_REG_DEVREV));
exit:
superio_exit(sioaddr);
- release_region(sioaddr, 2);
return err;
}
diff --git a/drivers/hwmon/fschmd.c b/drivers/hwmon/fschmd.c
index b7ca2a9676cf..d4d4ca65d371 100644
--- a/drivers/hwmon/fschmd.c
+++ b/drivers/hwmon/fschmd.c
@@ -38,7 +38,6 @@
#include <linux/i2c.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
-#include <linux/smp_lock.h>
#include <linux/err.h>
#include <linux/mutex.h>
#include <linux/sysfs.h>
@@ -50,6 +49,7 @@
#include <linux/kref.h>
/* Addresses to scan */
+static DEFINE_MUTEX(watchdog_mutex);
static const unsigned short normal_i2c[] = { 0x73, I2C_CLIENT_END };
/* Insmod parameters */
@@ -858,7 +858,7 @@ static long watchdog_ioctl(struct file *filp, unsigned int cmd, unsigned long ar
int i, ret = 0;
struct fschmd_data *data = filp->private_data;
- lock_kernel();
+ mutex_lock(&watchdog_mutex);
switch (cmd) {
case WDIOC_GETSUPPORT:
ident.firmware_version = data->revision;
@@ -915,7 +915,7 @@ static long watchdog_ioctl(struct file *filp, unsigned int cmd, unsigned long ar
default:
ret = -ENOTTY;
}
- unlock_kernel();
+ mutex_unlock(&watchdog_mutex);
return ret;
}
diff --git a/drivers/hwmon/lis3lv02d.c b/drivers/hwmon/lis3lv02d.c
index 6138f036b159..fc591ae53107 100644
--- a/drivers/hwmon/lis3lv02d.c
+++ b/drivers/hwmon/lis3lv02d.c
@@ -277,7 +277,7 @@ static irqreturn_t lis302dl_interrupt(int irq, void *dummy)
wake_up_interruptible(&lis3_dev.misc_wait);
kill_fasync(&lis3_dev.async_queue, SIGIO, POLL_IN);
out:
- if (lis3_dev.whoami == WAI_8B && lis3_dev.idev &&
+ if (lis3_dev.pdata && lis3_dev.whoami == WAI_8B && lis3_dev.idev &&
lis3_dev.idev->input->users)
return IRQ_WAKE_THREAD;
return IRQ_HANDLED;
@@ -718,7 +718,7 @@ int lis3lv02d_init_device(struct lis3lv02d *dev)
* io-apic is not configurable (and generates a warning) but I keep it
* in case of support for other hardware.
*/
- if (dev->whoami == WAI_8B)
+ if (dev->pdata && dev->whoami == WAI_8B)
thread_fn = lis302dl_interrupt_thread1_8b;
else
thread_fn = NULL;
diff --git a/drivers/hwmon/pkgtemp.c b/drivers/hwmon/pkgtemp.c
index 74157fcda6ed..f11903936c8b 100644
--- a/drivers/hwmon/pkgtemp.c
+++ b/drivers/hwmon/pkgtemp.c
@@ -33,7 +33,6 @@
#include <linux/list.h>
#include <linux/platform_device.h>
#include <linux/cpu.h>
-#include <linux/pci.h>
#include <asm/msr.h>
#include <asm/processor.h>
@@ -224,7 +223,7 @@ static int __devinit pkgtemp_probe(struct platform_device *pdev)
err = sysfs_create_group(&pdev->dev.kobj, &pkgtemp_group);
if (err)
- goto exit_free;
+ goto exit_dev;
data->hwmon_dev = hwmon_device_register(&pdev->dev);
if (IS_ERR(data->hwmon_dev)) {
@@ -238,6 +237,8 @@ static int __devinit pkgtemp_probe(struct platform_device *pdev)
exit_class:
sysfs_remove_group(&pdev->dev.kobj, &pkgtemp_group);
+exit_dev:
+ device_remove_file(&pdev->dev, &sensor_dev_attr_temp1_max.dev_attr);
exit_free:
kfree(data);
exit:
@@ -250,6 +251,7 @@ static int __devexit pkgtemp_remove(struct platform_device *pdev)
hwmon_device_unregister(data->hwmon_dev);
sysfs_remove_group(&pdev->dev.kobj, &pkgtemp_group);
+ device_remove_file(&pdev->dev, &sensor_dev_attr_temp1_max.dev_attr);
platform_set_drvdata(pdev, NULL);
kfree(data);
return 0;
@@ -281,9 +283,10 @@ static int __cpuinit pkgtemp_device_add(unsigned int cpu)
int err;
struct platform_device *pdev;
struct pdev_entry *pdev_entry;
-#ifdef CONFIG_SMP
struct cpuinfo_x86 *c = &cpu_data(cpu);
-#endif
+
+ if (!cpu_has(c, X86_FEATURE_PTS))
+ return 0;
mutex_lock(&pdev_list_mutex);
@@ -339,17 +342,18 @@ exit:
#ifdef CONFIG_HOTPLUG_CPU
static void pkgtemp_device_remove(unsigned int cpu)
{
- struct pdev_entry *p, *n;
+ struct pdev_entry *p;
unsigned int i;
int err;
mutex_lock(&pdev_list_mutex);
- list_for_each_entry_safe(p, n, &pdev_list, list) {
+ list_for_each_entry(p, &pdev_list, list) {
if (p->cpu != cpu)
continue;
platform_device_unregister(p->pdev);
list_del(&p->list);
+ mutex_unlock(&pdev_list_mutex);
kfree(p);
for_each_cpu(i, cpu_core_mask(cpu)) {
if (i != cpu) {
@@ -358,7 +362,7 @@ static void pkgtemp_device_remove(unsigned int cpu)
break;
}
}
- break;
+ return;
}
mutex_unlock(&pdev_list_mutex);
}
@@ -399,11 +403,6 @@ static int __init pkgtemp_init(void)
goto exit;
for_each_online_cpu(i) {
- struct cpuinfo_x86 *c = &cpu_data(i);
-
- if (!cpu_has(c, X86_FEATURE_PTS))
- continue;
-
err = pkgtemp_device_add(i);
if (err)
goto exit_devices_unreg;
diff --git a/drivers/hwmon/w83793.c b/drivers/hwmon/w83793.c
index 697202e27891..8e540ada47d2 100644
--- a/drivers/hwmon/w83793.c
+++ b/drivers/hwmon/w83793.c
@@ -35,7 +35,6 @@
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/hwmon.h>
-#include <linux/smp_lock.h>
#include <linux/hwmon-vid.h>
#include <linux/hwmon-sysfs.h>
#include <linux/err.h>
@@ -52,6 +51,7 @@
#define WATCHDOG_TIMEOUT 2 /* 2 minute default timeout */
/* Addresses to scan */
+static DEFINE_MUTEX(watchdog_mutex);
static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f,
I2C_CLIENT_END };
@@ -1333,7 +1333,7 @@ static long watchdog_ioctl(struct file *filp, unsigned int cmd,
int val, ret = 0;
struct w83793_data *data = filp->private_data;
- lock_kernel();
+ mutex_lock(&watchdog_mutex);
switch (cmd) {
case WDIOC_GETSUPPORT:
if (!nowayout)
@@ -1387,7 +1387,7 @@ static long watchdog_ioctl(struct file *filp, unsigned int cmd,
default:
ret = -ENOTTY;
}
- unlock_kernel();
+ mutex_unlock(&watchdog_mutex);
return ret;
}
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