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-rw-r--r--drivers/acpi/container.c6
-rw-r--r--drivers/acpi/glue.c1
-rw-r--r--drivers/acpi/osl.c6
-rw-r--r--drivers/acpi/processor_idle.c37
-rw-r--r--drivers/acpi/scan.c6
-rw-r--r--drivers/acpi/video.c12
6 files changed, 34 insertions, 34 deletions
diff --git a/drivers/acpi/container.c b/drivers/acpi/container.c
index 10dd695a1dd..27ec12c1fab 100644
--- a/drivers/acpi/container.c
+++ b/drivers/acpi/container.c
@@ -118,11 +118,9 @@ static int acpi_container_remove(struct acpi_device *device, int type)
{
acpi_status status = AE_OK;
struct acpi_container *pc = NULL;
- pc = (struct acpi_container *)acpi_driver_data(device);
-
- if (pc)
- kfree(pc);
+ pc = (struct acpi_container *)acpi_driver_data(device);
+ kfree(pc);
return status;
}
diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c
index 3937adf4e5e..aa993715d64 100644
--- a/drivers/acpi/glue.c
+++ b/drivers/acpi/glue.c
@@ -203,6 +203,7 @@ acpi_handle acpi_get_pci_rootbridge_handle(unsigned int seg, unsigned int bus)
acpi_get_devices(PCI_ROOT_HID_STRING, find_pci_rootbridge, &find, NULL);
return find.handle;
}
+EXPORT_SYMBOL_GPL(acpi_get_pci_rootbridge_handle);
/* Get device's handler per its address under its parent */
struct acpi_find_child {
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index d528c750a38..e3cd0b16031 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -313,8 +313,7 @@ acpi_status acpi_os_remove_interrupt_handler(u32 irq, acpi_osd_handler handler)
void acpi_os_sleep(acpi_integer ms)
{
- current->state = TASK_INTERRUPTIBLE;
- schedule_timeout(((signed long)ms * HZ) / 1000);
+ schedule_timeout_interruptible(msecs_to_jiffies(ms));
}
EXPORT_SYMBOL(acpi_os_sleep);
@@ -838,8 +837,7 @@ acpi_status acpi_os_wait_semaphore(acpi_handle handle, u32 units, u16 timeout)
ret = down_trylock(sem);
for (i = timeout; (i > 0 && ret < 0); i -= quantum_ms) {
- current->state = TASK_INTERRUPTIBLE;
- schedule_timeout(1);
+ schedule_timeout_interruptible(1);
ret = down_trylock(sem);
}
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 161db4acfb9..573b6a97bb1 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -167,6 +167,19 @@ acpi_processor_power_activate(struct acpi_processor *pr,
return;
}
+static void acpi_safe_halt(void)
+{
+ int polling = test_thread_flag(TIF_POLLING_NRFLAG);
+ if (polling) {
+ clear_thread_flag(TIF_POLLING_NRFLAG);
+ smp_mb__after_clear_bit();
+ }
+ if (!need_resched())
+ safe_halt();
+ if (polling)
+ set_thread_flag(TIF_POLLING_NRFLAG);
+}
+
static atomic_t c3_cpu_count;
static void acpi_processor_idle(void)
@@ -177,7 +190,7 @@ static void acpi_processor_idle(void)
int sleep_ticks = 0;
u32 t1, t2 = 0;
- pr = processors[raw_smp_processor_id()];
+ pr = processors[smp_processor_id()];
if (!pr)
return;
@@ -197,8 +210,13 @@ static void acpi_processor_idle(void)
}
cx = pr->power.state;
- if (!cx)
- goto easy_out;
+ if (!cx) {
+ if (pm_idle_save)
+ pm_idle_save();
+ else
+ acpi_safe_halt();
+ return;
+ }
/*
* Check BM Activity
@@ -278,7 +296,8 @@ static void acpi_processor_idle(void)
if (pm_idle_save)
pm_idle_save();
else
- safe_halt();
+ acpi_safe_halt();
+
/*
* TBD: Can't get time duration while in C1, as resumes
* go to an ISR rather than here. Need to instrument
@@ -414,16 +433,6 @@ static void acpi_processor_idle(void)
*/
if (next_state != pr->power.state)
acpi_processor_power_activate(pr, next_state);
-
- return;
-
- easy_out:
- /* do C1 instead of busy loop */
- if (pm_idle_save)
- pm_idle_save();
- else
- safe_halt();
- return;
}
static int acpi_processor_set_power_policy(struct acpi_processor *pr)
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index c6db591479d..23e2c6968a1 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -28,8 +28,7 @@ static int acpi_bus_trim(struct acpi_device *start, int rmdevice);
static void acpi_device_release(struct kobject *kobj)
{
struct acpi_device *dev = container_of(kobj, struct acpi_device, kobj);
- if (dev->pnp.cid_list)
- kfree(dev->pnp.cid_list);
+ kfree(dev->pnp.cid_list);
kfree(dev);
}
@@ -1117,8 +1116,7 @@ acpi_add_single_object(struct acpi_device **child,
if (!result)
*child = device;
else {
- if (device->pnp.cid_list)
- kfree(device->pnp.cid_list);
+ kfree(device->pnp.cid_list);
kfree(device);
}
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index e383d6109ae..f051b151580 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -334,8 +334,7 @@ acpi_video_device_lcd_query_levels(struct acpi_video_device *device,
return_VALUE(0);
err:
- if (buffer.pointer)
- kfree(buffer.pointer);
+ kfree(buffer.pointer);
return_VALUE(status);
}
@@ -1488,8 +1487,7 @@ static int acpi_video_device_enumerate(struct acpi_video_bus *video)
}
active_device_list[count].value.int_val = ACPI_VIDEO_HEAD_END;
- if (video->attached_array)
- kfree(video->attached_array);
+ kfree(video->attached_array);
video->attached_array = active_device_list;
video->attached_count = count;
@@ -1645,8 +1643,7 @@ static int acpi_video_bus_put_devices(struct acpi_video_bus *video)
printk(KERN_WARNING PREFIX
"hhuuhhuu bug in acpi video driver.\n");
- if (data->brightness)
- kfree(data->brightness);
+ kfree(data->brightness);
kfree(data);
}
@@ -1831,8 +1828,7 @@ static int acpi_video_bus_remove(struct acpi_device *device, int type)
acpi_video_bus_put_devices(video);
acpi_video_bus_remove_fs(device);
- if (video->attached_array)
- kfree(video->attached_array);
+ kfree(video->attached_array);
kfree(video);
return_VALUE(0);
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-09 22:34:52 +0000