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alistair23-linux
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[PATCH] firmware_class: s/semaphores/mutexes 

Hi, this patch converts semaphores to mutexes for Randy's firmware_class.

Signed-off-by: Laura Garcia Liebana <nevola@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
hifive-unleashed-5.1
Laura Garcia 2006-05-23 23:22:38 +02:00 committed by Greg Kroah-Hartman
parent fd869db6eb
commit cad1e55d4d
1 changed files with 11 additions and 11 deletions
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22
drivers/base/firmware_class.c
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@ -15,7 +15,7 @@
#include <linux/vmalloc.h>
#include <linux/interrupt.h>
#include <linux/bitops.h>
#include <asm/semaphore.h>
#include <linux/mutex.h>
#include <linux/firmware.h>
#include "base.h"
@ -36,7 +36,7 @@ static int loading_timeout = 10; /* In seconds */
/* fw_lock could be moved to 'struct firmware_priv' but since it is just
* guarding for corner cases a global lock should be OK */
static DECLARE_MUTEX(fw_lock);
static DEFINE_MUTEX(fw_lock);
struct firmware_priv {
char fw_id[FIRMWARE_NAME_MAX];
@ -142,9 +142,9 @@ firmware_loading_store(struct class_device *class_dev,
switch (loading) {
case 1:
down(&fw_lock);
mutex_lock(&fw_lock);
if (!fw_priv->fw) {
up(&fw_lock);
mutex_unlock(&fw_lock);
break;
}
vfree(fw_priv->fw->data);
@ -152,7 +152,7 @@ firmware_loading_store(struct class_device *class_dev,
fw_priv->fw->size = 0;
fw_priv->alloc_size = 0;
set_bit(FW_STATUS_LOADING, &fw_priv->status);
up(&fw_lock);
mutex_unlock(&fw_lock);
break;
case 0:
if (test_bit(FW_STATUS_LOADING, &fw_priv->status)) {
@ -185,7 +185,7 @@ firmware_data_read(struct kobject *kobj,
struct firmware *fw;
ssize_t ret_count = count;
down(&fw_lock);
mutex_lock(&fw_lock);
fw = fw_priv->fw;
if (!fw || test_bit(FW_STATUS_DONE, &fw_priv->status)) {
ret_count = -ENODEV;
@ -200,7 +200,7 @@ firmware_data_read(struct kobject *kobj,
memcpy(buffer, fw->data + offset, ret_count);
out:
up(&fw_lock);
mutex_unlock(&fw_lock);
return ret_count;
}
@ -253,7 +253,7 @@ firmware_data_write(struct kobject *kobj,
if (!capable(CAP_SYS_RAWIO))
return -EPERM;
down(&fw_lock);
mutex_lock(&fw_lock);
fw = fw_priv->fw;
if (!fw || test_bit(FW_STATUS_DONE, &fw_priv->status)) {
retval = -ENODEV;
@ -268,7 +268,7 @@ firmware_data_write(struct kobject *kobj,
fw->size = max_t(size_t, offset + count, fw->size);
retval = count;
out:
up(&fw_lock);
mutex_unlock(&fw_lock);
return retval;
}
@ -436,14 +436,14 @@ _request_firmware(const struct firmware **firmware_p, const char *name,
} else
wait_for_completion(&fw_priv->completion);
down(&fw_lock);
mutex_lock(&fw_lock);
if (!fw_priv->fw->size || test_bit(FW_STATUS_ABORT, &fw_priv->status)) {
retval = -ENOENT;
release_firmware(fw_priv->fw);
*firmware_p = NULL;
}
fw_priv->fw = NULL;
up(&fw_lock);
mutex_unlock(&fw_lock);
class_device_unregister(class_dev);
goto out;