X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fbase%2Ffirmware_class.c;h=5d6c011183f5b7259297276b251f1648580421c7;hb=a2b524b2ec6caa0499aea56a58fdb67a6d10db90;hp=472318205236162eaca67da28be8b3ece20b50bc;hpb=74293759002aa7db0179158c20676a034614577b;p=linux-2.6

diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index 4723182052..5d6c011183 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -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];
@@ -86,18 +86,9 @@ firmware_timeout_store(struct class *class, const char *buf, size_t count)
 static CLASS_ATTR(timeout, 0644, firmware_timeout_show, firmware_timeout_store);
 
 static void  fw_class_dev_release(struct class_device *class_dev);
-int firmware_class_uevent(struct class_device *dev, char **envp,
-			   int num_envp, char *buffer, int buffer_size);
 
-static struct class firmware_class = {
-	.name		= "firmware",
-	.uevent	= firmware_class_uevent,
-	.release	= fw_class_dev_release,
-};
-
-int
-firmware_class_uevent(struct class_device *class_dev, char **envp,
-		       int num_envp, char *buffer, int buffer_size)
+static int firmware_class_uevent(struct class_device *class_dev, char **envp,
+				 int num_envp, char *buffer, int buffer_size)
 {
 	struct firmware_priv *fw_priv = class_get_devdata(class_dev);
 	int i = 0, len = 0;
@@ -116,6 +107,12 @@ firmware_class_uevent(struct class_device *class_dev, char **envp,
 	return 0;
 }
 
+static struct class firmware_class = {
+	.name		= "firmware",
+	.uevent		= firmware_class_uevent,
+	.release	= fw_class_dev_release,
+};
+
 static ssize_t
 firmware_loading_show(struct class_device *class_dev, char *buf)
 {
@@ -145,9 +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);
@@ -155,7 +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)) {
@@ -188,7 +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;
@@ -203,7 +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;
 }
 
@@ -256,7 +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;
@@ -271,7 +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;
 }
 
@@ -439,14 +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;
 
@@ -493,25 +490,6 @@ release_firmware(const struct firmware *fw)
 	}
 }
 
-/**
- * register_firmware: - provide a firmware image for later usage
- * @name: name of firmware image file
- * @data: buffer pointer for the firmware image
- * @size: size of the data buffer area
- *
- *	Make sure that @data will be available by requesting firmware @name.
- *
- *	Note: This will not be possible until some kind of persistence
- *	is available.
- **/
-void
-register_firmware(const char *name, const u8 *data, size_t size)
-{
-	/* This is meaningless without firmware caching, so until we
-	 * decide if firmware caching is reasonable just leave it as a
-	 * noop */
-}
-
 /* Async support */
 struct firmware_work {
 	struct work_struct work;
@@ -630,4 +608,3 @@ module_exit(firmware_class_exit);
 EXPORT_SYMBOL(release_firmware);
 EXPORT_SYMBOL(request_firmware);
 EXPORT_SYMBOL(request_firmware_nowait);
-EXPORT_SYMBOL(register_firmware);