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SubjectRe: [-mm patch] drivers/media/video/bt866.c: small fixes
An extension to Adrian's patch:
- Numerous coding style compliance fixes.
- Obscure defines moved to prominent places.
- sizeof(init) replaced by ARRAY_SIZE(init).
- schedule_timeout() replaced by schedule_timeout_interruptible().

Signed-off-by: Martin Samuelsson <sam@home.se>

---
bt866.c | 67 +++++++++++++++++++++++++++-------------------------------------
1 files changed, 29 insertions(+), 38 deletions(-)
This should fix all things Andrew pointed out when I first submitted the
avs6eyes driver.

--- linux-2.6.17-rc1-mm1-ab-avs6eyes/drivers/media/video/bt866.c 2006-04-04 22:13:01.000000000 +0200
+++ linux-2.6.16-git15-avs6eyes/drivers/media/video/bt866.c 2006-04-04 22:00:32.000000000 +0200
@@ -51,9 +51,12 @@

#include <linux/video_encoder.h>

+#define BT866_DEVNAME "bt866"
+#define I2C_BT866 0x88
+
MODULE_LICENSE("GPL");

-#define DEBUG(x) /* Debug driver */
+#define DEBUG(x) /* Debug driver */

/* ----------------------------------------------------------------------- */

@@ -70,8 +73,6 @@ struct bt866 {
int sat;
};

-#define I2C_BT866 0x88
-
static int bt866_write(struct bt866 *dev,
unsigned char subaddr, unsigned char data);

@@ -152,9 +153,8 @@ static int bt866_do_command(struct bt866
int i;
u8 val;

- for (i = 0; i < sizeof(init) / 2; i += 2) {
+ for (i = 0; i < ARRAY_SIZE(init) / 2; i += 2)
bt866_write(encoder, init[i], init[i+1]);
- }

val = encoder->reg[0xdc];

@@ -162,7 +162,6 @@ static int bt866_do_command(struct bt866
val |= 0x40; /* CBSWAP */
else
val &= ~0x40; /* !CBSWAP */
- //debug printk("0xdc = 0x%02x\n", val);

bt866_write(encoder, 0xdc, val);

@@ -196,9 +195,8 @@ static int bt866_do_command(struct bt866
encoder->i2c->name, *iarg));

/* not much choice of outputs */
- if (*iarg != 0) {
+ if (*iarg != 0)
return -EINVAL;
- }
}
break;

@@ -236,8 +234,6 @@ static int bt866_do_command(struct bt866
return 0;
}

-#define BT866_DEVNAME "bt866"
-
static int bt866_write(struct bt866 *encoder,
unsigned char subaddr, unsigned char data)
{
@@ -250,19 +246,20 @@ static int bt866_write(struct bt866 *enc
encoder->reg[subaddr] = data;

DEBUG(printk
- ( "%s: write 0x%02X = 0x%02X\n",
+ ("%s: write 0x%02X = 0x%02X\n",
encoder->i2c->name, subaddr, data));

for (err = 0; err < 3;) {
- if (2 == i2c_master_send(encoder->i2c, buffer, 2))
+ if (i2c_master_send(encoder->i2c, buffer, 2) == 2)
break;
err++;
- printk(KERN_WARNING "%s: I/O error #%d (write 0x%02x/0x%02x)\n",
+ printk(KERN_WARNING "%s: I/O error #%d "
+ "(write 0x%02x/0x%02x)\n",
encoder->i2c->name, err, encoder->addr, subaddr);
current->state = TASK_INTERRUPTIBLE;
- schedule_timeout(HZ/10);
+ schedule_timeout_interruptible(HZ/10);
}
- if (3 == err) {
+ if (err == 3) {
printk(KERN_WARNING "%s: giving up\n",
encoder->i2c->name);
return -1;
@@ -273,13 +270,14 @@ static int bt866_write(struct bt866 *enc

static int bt866_attach(struct i2c_adapter *adapter);
static int bt866_detach(struct i2c_client *client);
-static int bt866_command(struct i2c_client *client, unsigned int cmd, void *arg );
+static int bt866_command(struct i2c_client *client,
+ unsigned int cmd, void *arg);


/* Addresses to scan */
-static unsigned short normal_i2c[] = { I2C_BT866>>1, I2C_CLIENT_END };
-static unsigned short probe[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
-static unsigned short ignore[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
+static unsigned short normal_i2c[] = {I2C_BT866>>1, I2C_CLIENT_END};
+static unsigned short probe[2] = {I2C_CLIENT_END, I2C_CLIENT_END};
+static unsigned short ignore[2] = {I2C_CLIENT_END, I2C_CLIENT_END};

static struct i2c_client_address_data addr_data = {
normal_i2c,
@@ -288,12 +286,8 @@ static struct i2c_client_address_data ad
};

static struct i2c_driver i2c_driver_bt866 = {
- .driver = {
- .name = BT866_DEVNAME,
- },
-
+ .driver.name = BT866_DEVNAME,
.id = I2C_DRIVERID_BT866,
-
.attach_adapter = bt866_attach,
.detach_client = bt866_detach,
.command = bt866_command
@@ -302,11 +296,11 @@ static struct i2c_driver i2c_driver_bt86

static struct i2c_client bt866_client_tmpl =
{
- name: "(nil)",
- addr: 0,
- adapter: NULL,
- driver: &i2c_driver_bt866,
- usage_count: 0
+ .name = "(nil)",
+ .addr = 0,
+ .adapter = NULL,
+ .driver = &i2c_driver_bt866,
+ .usage_count = 0
};

static int bt866_found_proc(struct i2c_adapter *adapter,
@@ -316,13 +310,13 @@ static int bt866_found_proc(struct i2c_a
struct i2c_client *client;

client = kzalloc(sizeof(*client), GFP_KERNEL);
- if(client == NULL)
+ if (client == NULL)
return -ENOMEM;
- memcpy( client, &bt866_client_tmpl, sizeof(*client) );
+ memcpy(client, &bt866_client_tmpl, sizeof(*client));

- encoder = kzalloc( sizeof(*encoder), GFP_KERNEL );
- if( encoder == NULL ) {
- kfree( client );
+ encoder = kzalloc(sizeof(*encoder), GFP_KERNEL);
+ if (encoder == NULL) {
+ kfree(client);
return -ENOMEM;
}

@@ -344,7 +338,7 @@ static int bt866_found_proc(struct i2c_a

static int bt866_attach(struct i2c_adapter *adapter)
{
- if ( adapter->id == I2C_HW_B_ZR36067 )
+ if (adapter->id == I2C_HW_B_ZR36067)
return i2c_probe(adapter, &addr_data, bt866_found_proc);
return 0;
}
@@ -367,9 +361,6 @@ static int bt866_command(struct i2c_clie
return bt866_do_command(encoder, cmd, arg);
}

-/****************************************************************************
-* linux kernel module api
-****************************************************************************/
static int __devinit bt866_init(void)
{
i2c_add_driver(&i2c_driver_bt866);
-
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