[PATCH] i2c: Semaphore to mutex conversions, part 2

semaphore to mutex conversion.

the conversion was generated via scripts, and the result was validated
automatically via a script as well.

build tested.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

4 files changed, 40 insertions, 37 deletions

diff --git a/drivers/i2c/chips/eeprom.c b/drivers/i2c/chips/eeprom.c
index 41116b7947f6..13c108269a6d 100644
--- a/drivers/i2c/chips/eeprom.c
+++ b/drivers/i2c/chips/eeprom.c
@@ -33,6 +33,7 @@
 #include <linux/sched.h>
 #include <linux/jiffies.h>
 #include <linux/i2c.h>
+#include <linux/mutex.h>
 
 /* Addresses to scan */
 static unsigned short normal_i2c[] = { 0x50, 0x51, 0x52, 0x53, 0x54,
@@ -54,7 +55,7 @@ enum eeprom_nature {
 /* Each client has this additional data */
 struct eeprom_data {
         struct i2c_client client;
-        struct semaphore update_lock;
+        struct mutex update_lock;
         u8 valid;                       /* bitfield, bit!=0 if slice is valid */
         unsigned long last_updated[8];  /* In jiffies, 8 slices */
         u8 data[EEPROM_SIZE];           /* Register values */
@@ -81,7 +82,7 @@ static void eeprom_update_client(struct i2c_client *client, u8 slice)
         struct eeprom_data *data = i2c_get_clientdata(client);
         int i, j;
 
-        down(&data->update_lock);
+        mutex_lock(&data->update_lock);
 
         if (!(data->valid & (1 << slice)) ||
             time_after(jiffies, data->last_updated[slice] + 300 * HZ)) {
@@ -107,7 +108,7 @@ static void eeprom_update_client(struct i2c_client *client, u8 slice)
                 data->valid |= (1 << slice);
         }
 exit:
-        up(&data->update_lock);
+        mutex_unlock(&data->update_lock);
 }
 
 static ssize_t eeprom_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
@@ -187,7 +188,7 @@ static int eeprom_detect(struct i2c_adapter *adapter, int address, int kind)
         /* Fill in the remaining client fields */
         strlcpy(new_client->name, "eeprom", I2C_NAME_SIZE);
         data->valid = 0;
-        init_MUTEX(&data->update_lock);
+        mutex_init(&data->update_lock);
         data->nature = UNKNOWN;
 
         /* Tell the I2C layer a new client has arrived */
diff --git a/drivers/i2c/chips/max6875.c b/drivers/i2c/chips/max6875.c
index 6d3ff584155e..88d2ddee4490 100644
--- a/drivers/i2c/chips/max6875.c
+++ b/drivers/i2c/chips/max6875.c
@@ -31,7 +31,7 @@
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/i2c.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
 
 /* Do not scan - the MAX6875 access method will write to some EEPROM chips */
 static unsigned short normal_i2c[] = {I2C_CLIENT_END};
@@ -54,7 +54,7 @@ I2C_CLIENT_INSMOD_1(max6875);
 /* Each client has this additional data */
 struct max6875_data {
         struct i2c_client       client;
-        struct semaphore        update_lock;
+        struct mutex            update_lock;
 
         u32                     valid;
         u8                      data[USER_EEPROM_SIZE];
@@ -83,7 +83,7 @@ static void max6875_update_slice(struct i2c_client *client, int slice)
         if (slice >= USER_EEPROM_SLICES)
                 return;
 
-        down(&data->update_lock);
+        mutex_lock(&data->update_lock);
 
         buf = &data->data[slice << SLICE_BITS];
 
@@ -122,7 +122,7 @@ static void max6875_update_slice(struct i2c_client *client, int slice)
                 data->valid |= (1 << slice);
         }
 exit_up:
-        up(&data->update_lock);
+        mutex_unlock(&data->update_lock);
 }
 
 static ssize_t max6875_read(struct kobject *kobj, char *buf, loff_t off,
@@ -196,7 +196,7 @@ static int max6875_detect(struct i2c_adapter *adapter, int address, int kind)
         real_client->driver = &max6875_driver;
         real_client->flags = 0;
         strlcpy(real_client->name, "max6875", I2C_NAME_SIZE);
-        init_MUTEX(&data->update_lock);
+        mutex_init(&data->update_lock);
 
         /* Init fake client data */
         /* set the client data to the i2c_client so that it will get freed */
diff --git a/drivers/i2c/chips/pcf8591.c b/drivers/i2c/chips/pcf8591.c
index 36cff09c678d..925a6b371fd2 100644
--- a/drivers/i2c/chips/pcf8591.c
+++ b/drivers/i2c/chips/pcf8591.c
@@ -24,6 +24,7 @@
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/i2c.h>
+#include <linux/mutex.h>
 
 /* Addresses to scan */
 static unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b, 0x4c,
@@ -74,7 +75,7 @@ MODULE_PARM_DESC(input_mode,
 
 struct pcf8591_data {
         struct i2c_client client;
-        struct semaphore update_lock;
+        struct mutex update_lock;
 
         u8 control;
         u8 aout;
@@ -144,13 +145,13 @@ static ssize_t set_out0_enable(struct device *dev, struct device_attribute *attr
         struct pcf8591_data *data = i2c_get_clientdata(client);
         unsigned long val = simple_strtoul(buf, NULL, 10);
 
-        down(&data->update_lock);
+        mutex_lock(&data->update_lock);
         if (val)
                 data->control |= PCF8591_CONTROL_AOEF;
         else
                 data->control &= ~PCF8591_CONTROL_AOEF;
         i2c_smbus_write_byte(client, data->control);
-        up(&data->update_lock);
+        mutex_unlock(&data->update_lock);
         return count;
 }
 
@@ -200,7 +201,7 @@ static int pcf8591_detect(struct i2c_adapter *adapter, int address, int kind)
         /* Fill in the remaining client fields and put it into the global 
            list */
         strlcpy(new_client->name, "pcf8591", I2C_NAME_SIZE);
-        init_MUTEX(&data->update_lock);
+        mutex_init(&data->update_lock);
 
         /* Tell the I2C layer a new client has arrived */
         if ((err = i2c_attach_client(new_client)))
@@ -265,7 +266,7 @@ static int pcf8591_read_channel(struct device *dev, int channel)
         struct i2c_client *client = to_i2c_client(dev);
         struct pcf8591_data *data = i2c_get_clientdata(client);
 
-        down(&data->update_lock);
+        mutex_lock(&data->update_lock);
 
         if ((data->control & PCF8591_CONTROL_AICH_MASK) != channel) {
                 data->control = (data->control & ~PCF8591_CONTROL_AICH_MASK)
@@ -278,7 +279,7 @@ static int pcf8591_read_channel(struct device *dev, int channel)
         }
         value = i2c_smbus_read_byte(client);
 
-        up(&data->update_lock);
+        mutex_unlock(&data->update_lock);
 
         if ((channel == 2 && input_mode == 2) ||
             (channel != 3 && (input_mode == 1 || input_mode == 3)))
diff --git a/drivers/i2c/chips/tps65010.c b/drivers/i2c/chips/tps65010.c
index 1af3dfbb8086..179b1e022d80 100644
--- a/drivers/i2c/chips/tps65010.c
+++ b/drivers/i2c/chips/tps65010.c
@@ -32,6 +32,7 @@
 #include <linux/suspend.h>
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
+#include <linux/mutex.h>
 
 #include <asm/irq.h>
 #include <asm/mach-types.h>
@@ -81,7 +82,7 @@ enum tps_model {
 
 struct tps65010 {
         struct i2c_client       client;
-        struct semaphore        lock;
+        struct mutex            lock;
         int                     irq;
         struct work_struct      work;
         struct dentry           *file;
@@ -218,7 +219,7 @@ static int dbg_show(struct seq_file *s, void *_)
         seq_printf(s, "driver  %s\nversion %s\nchip    %s\n\n",
                         DRIVER_NAME, DRIVER_VERSION, chip);
 
-        down(&tps->lock);
+        mutex_lock(&tps->lock);
 
         /* FIXME how can we tell whether a battery is present?
          * likely involves a charge gauging chip (like BQ26501).
@@ -300,7 +301,7 @@ static int dbg_show(struct seq_file *s, void *_)
                                 (v2 & (1 << (4 + i))) ? "rising" : "falling");
         }
 
-        up(&tps->lock);
+        mutex_unlock(&tps->lock);
         return 0;
 }
 
@@ -416,7 +417,7 @@ static void tps65010_work(void *_tps)
 {
         struct tps65010         *tps = _tps;
 
-        down(&tps->lock);
+        mutex_lock(&tps->lock);
 
         tps65010_interrupt(tps);
 
@@ -444,7 +445,7 @@ static void tps65010_work(void *_tps)
         if (test_and_clear_bit(FLAG_IRQ_ENABLE, &tps->flags))
                 enable_irq(tps->irq);
 
-        up(&tps->lock);
+        mutex_unlock(&tps->lock);
 }
 
 static irqreturn_t tps65010_irq(int irq, void *_tps, struct pt_regs *regs)
@@ -505,7 +506,7 @@ tps65010_probe(struct i2c_adapter *bus, int address, int kind)
         if (!tps)
                 return 0;
 
-        init_MUTEX(&tps->lock);
+        mutex_init(&tps->lock);
         INIT_WORK(&tps->work, tps65010_work, tps);
         tps->irq = -1;
         tps->client.addr = address;
@@ -695,7 +696,7 @@ int tps65010_set_gpio_out_value(unsigned gpio, unsigned value)
         if ((gpio < GPIO1) || (gpio > GPIO4))
                 return -EINVAL;
 
-        down(&the_tps->lock);
+        mutex_lock(&the_tps->lock);
 
         defgpio = i2c_smbus_read_byte_data(&the_tps->client, TPS_DEFGPIO);
 
@@ -720,7 +721,7 @@ int tps65010_set_gpio_out_value(unsigned gpio, unsigned value)
                 gpio, value ? "high" : "low",
                 i2c_smbus_read_byte_data(&the_tps->client, TPS_DEFGPIO));
 
-        up(&the_tps->lock);
+        mutex_unlock(&the_tps->lock);
         return status;
 }
 EXPORT_SYMBOL(tps65010_set_gpio_out_value);
@@ -745,7 +746,7 @@ int tps65010_set_led(unsigned led, unsigned mode)
                 led = LED2;
         }
 
-        down(&the_tps->lock);
+        mutex_lock(&the_tps->lock);
 
         pr_debug("%s: led%i_on   0x%02x\n", DRIVER_NAME, led,
                 i2c_smbus_read_byte_data(&the_tps->client,
@@ -771,7 +772,7 @@ int tps65010_set_led(unsigned led, unsigned mode)
         default:
                 printk(KERN_ERR "%s: Wrong mode parameter for set_led()\n",
                        DRIVER_NAME);
-                up(&the_tps->lock);
+                mutex_unlock(&the_tps->lock);
                 return -EINVAL;
         }
 
@@ -781,7 +782,7 @@ int tps65010_set_led(unsigned led, unsigned mode)
         if (status != 0) {
                 printk(KERN_ERR "%s: Failed to write led%i_on register\n",
                        DRIVER_NAME, led);
-                up(&the_tps->lock);
+                mutex_unlock(&the_tps->lock);
                 return status;
         }
 
@@ -794,7 +795,7 @@ int tps65010_set_led(unsigned led, unsigned mode)
         if (status != 0) {
                 printk(KERN_ERR "%s: Failed to write led%i_per register\n",
                        DRIVER_NAME, led);
-                up(&the_tps->lock);
+                mutex_unlock(&the_tps->lock);
                 return status;
         }
 
@@ -802,7 +803,7 @@ int tps65010_set_led(unsigned led, unsigned mode)
                 i2c_smbus_read_byte_data(&the_tps->client,
                                 TPS_LED1_PER + offs));
 
-        up(&the_tps->lock);
+        mutex_unlock(&the_tps->lock);
 
         return status;
 }
@@ -820,7 +821,7 @@ int tps65010_set_vib(unsigned value)
         if (!the_tps)
                 return -ENODEV;
 
-        down(&the_tps->lock);
+        mutex_lock(&the_tps->lock);
 
         vdcdc2 = i2c_smbus_read_byte_data(&the_tps->client, TPS_VDCDC2);
         vdcdc2 &= ~(1 << 1);
@@ -831,7 +832,7 @@ int tps65010_set_vib(unsigned value)
 
         pr_debug("%s: vibrator %s\n", DRIVER_NAME, value ? "on" : "off");
 
-        up(&the_tps->lock);
+        mutex_unlock(&the_tps->lock);
         return status;
 }
 EXPORT_SYMBOL(tps65010_set_vib);
@@ -848,7 +849,7 @@ int tps65010_set_low_pwr(unsigned mode)
         if (!the_tps)
                 return -ENODEV;
 
-        down(&the_tps->lock);
+        mutex_lock(&the_tps->lock);
 
         pr_debug("%s: %s low_pwr, vdcdc1 0x%02x\n", DRIVER_NAME,
                 mode ? "enable" : "disable",
@@ -876,7 +877,7 @@ int tps65010_set_low_pwr(unsigned mode)
                 pr_debug("%s: vdcdc1 0x%02x\n", DRIVER_NAME,
                         i2c_smbus_read_byte_data(&the_tps->client, TPS_VDCDC1));
 
-        up(&the_tps->lock);
+        mutex_unlock(&the_tps->lock);
 
         return status;
 }
@@ -894,7 +895,7 @@ int tps65010_config_vregs1(unsigned value)
         if (!the_tps)
                 return -ENODEV;
 
-        down(&the_tps->lock);
+        mutex_lock(&the_tps->lock);
 
         pr_debug("%s: vregs1 0x%02x\n", DRIVER_NAME,
                         i2c_smbus_read_byte_data(&the_tps->client, TPS_VREGS1));
@@ -909,7 +910,7 @@ int tps65010_config_vregs1(unsigned value)
                 pr_debug("%s: vregs1 0x%02x\n", DRIVER_NAME,
                         i2c_smbus_read_byte_data(&the_tps->client, TPS_VREGS1));
 
-        up(&the_tps->lock);
+        mutex_unlock(&the_tps->lock);
 
         return status;
 }
@@ -931,7 +932,7 @@ int tps65013_set_low_pwr(unsigned mode)
         if (!the_tps || the_tps->por)
                 return -ENODEV;
 
-        down(&the_tps->lock);
+        mutex_lock(&the_tps->lock);
 
         pr_debug("%s: %s low_pwr, chgconfig 0x%02x vdcdc1 0x%02x\n",
                 DRIVER_NAME,
@@ -959,7 +960,7 @@ int tps65013_set_low_pwr(unsigned mode)
         if (status != 0) {
                 printk(KERN_ERR "%s: Failed to write chconfig register\n",
          DRIVER_NAME);
-                up(&the_tps->lock);
+                mutex_unlock(&the_tps->lock);
                 return status;
         }
 
@@ -977,7 +978,7 @@ int tps65013_set_low_pwr(unsigned mode)
                 pr_debug("%s: vdcdc1 0x%02x\n", DRIVER_NAME,
                         i2c_smbus_read_byte_data(&the_tps->client, TPS_VDCDC1));
 
-        up(&the_tps->lock);
+        mutex_unlock(&the_tps->lock);
 
         return status;
 }