[patch 02/26] sem2mutex: drivers/acpi/

[akpm@xxxxxxxx]

From: Arjan van de Ven <arjan@xxxxxxxxxxxxx>

Semaphore to mutex conversion.

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

Signed-off-by: Arjan van de Ven <arjan@xxxxxxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
Cc: "Brown, Len" <len.brown@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---

 drivers/acpi/processor_perflib.c |   27 ++++++++++++++-------------
 drivers/acpi/scan.c              |    3 ++-
 2 files changed, 16 insertions(+), 14 deletions(-)

diff -puN drivers/acpi/processor_perflib.c~sem2mutex-drivers-acpi drivers/acpi/processor_perflib.c
--- devel/drivers/acpi/processor_perflib.c~sem2mutex-drivers-acpi	2006-03-28 14:03:00.000000000 -0800
+++ devel-akpm/drivers/acpi/processor_perflib.c	2006-03-28 14:03:00.000000000 -0800
@@ -34,6 +34,7 @@
 #ifdef CONFIG_X86_ACPI_CPUFREQ_PROC_INTF
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
+#include <linux/mutex.h>
 
 #include <asm/uaccess.h>
 #endif
@@ -48,7 +49,7 @@
 #define _COMPONENT		ACPI_PROCESSOR_COMPONENT
 ACPI_MODULE_NAME("acpi_processor")
 
-static DECLARE_MUTEX(performance_sem);
+static DEFINE_MUTEX(performance_mutex);
 
 /*
  * _PPC support is implemented as a CPUfreq policy notifier:
@@ -72,7 +73,7 @@ static int acpi_processor_ppc_notifier(s
 	struct acpi_processor *pr;
 	unsigned int ppc = 0;
 
-	down(&performance_sem);
+	mutex_lock(&performance_mutex);
 
 	if (event != CPUFREQ_INCOMPATIBLE)
 		goto out;
@@ -93,7 +94,7 @@ static int acpi_processor_ppc_notifier(s
 				     core_frequency * 1000);
 
       out:
-	up(&performance_sem);
+	mutex_unlock(&performance_mutex);
 
 	return 0;
 }
@@ -620,7 +621,7 @@ int acpi_processor_preregister_performan
 
 	ACPI_FUNCTION_TRACE("acpi_processor_preregister_performance");
 
-	down(&performance_sem);
+	mutex_lock(&performance_mutex);
 
 	retval = 0;
 
@@ -768,7 +769,7 @@ err_ret:
 		pr->performance = NULL; /* Will be set for real in register */
 	}
 
-	up(&performance_sem);
+	mutex_unlock(&performance_mutex);
 	return_VALUE(retval);
 }
 EXPORT_SYMBOL(acpi_processor_preregister_performance);
@@ -785,16 +786,16 @@ acpi_processor_register_performance(stru
 	if (!(acpi_processor_ppc_status & PPC_REGISTERED))
 		return_VALUE(-EINVAL);
 
-	down(&performance_sem);
+	mutex_lock(&performance_mutex);
 
 	pr = processors[cpu];
 	if (!pr) {
-		up(&performance_sem);
+		mutex_unlock(&performance_mutex);
 		return_VALUE(-ENODEV);
 	}
 
 	if (pr->performance) {
-		up(&performance_sem);
+		mutex_unlock(&performance_mutex);
 		return_VALUE(-EBUSY);
 	}
 
@@ -802,13 +803,13 @@ acpi_processor_register_performance(stru
 
 	if (acpi_processor_get_performance_info(pr)) {
 		pr->performance = NULL;
-		up(&performance_sem);
+		mutex_unlock(&performance_mutex);
 		return_VALUE(-EIO);
 	}
 
 	acpi_cpufreq_add_file(pr);
 
-	up(&performance_sem);
+	mutex_unlock(&performance_mutex);
 	return_VALUE(0);
 }
 
@@ -822,11 +823,11 @@ acpi_processor_unregister_performance(st
 
 	ACPI_FUNCTION_TRACE("acpi_processor_unregister_performance");
 
-	down(&performance_sem);
+	mutex_lock(&performance_mutex);
 
 	pr = processors[cpu];
 	if (!pr) {
-		up(&performance_sem);
+		mutex_unlock(&performance_mutex);
 		return_VOID;
 	}
 
@@ -835,7 +836,7 @@ acpi_processor_unregister_performance(st
 
 	acpi_cpufreq_remove_file(pr);
 
-	up(&performance_sem);
+	mutex_unlock(&performance_mutex);
 
 	return_VOID;
 }
diff -puN drivers/acpi/scan.c~sem2mutex-drivers-acpi drivers/acpi/scan.c
--- devel/drivers/acpi/scan.c~sem2mutex-drivers-acpi	2006-03-28 14:03:00.000000000 -0800
+++ devel-akpm/drivers/acpi/scan.c	2006-03-28 14:03:00.000000000 -0800
@@ -5,6 +5,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/acpi.h>
+#include <linux/mutex.h>
 
 #include <acpi/acpi_drivers.h>
 #include <acpi/acinterp.h>	/* for acpi_ex_eisa_id_to_string() */
@@ -470,7 +471,7 @@ static int acpi_bus_get_perf_flags(struc
    -------------------------------------------------------------------------- */
 
 static LIST_HEAD(acpi_bus_drivers);
-static DECLARE_MUTEX(acpi_bus_drivers_lock);
+static DEFINE_MUTEX(acpi_bus_drivers_lock);
 
 /**
  * acpi_bus_match - match device IDs to driver's supported IDs
_
-
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