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SubjectRe: [PATCH] i2c-isa and w83871d sensors support
On Sun, Jan 05, 2003 at 06:44:55PM +0100, GertJan Spoelman wrote:
> This patch adds the i2c-isa pseudo ISA adapter and the w8387* series
> sensors support to 2.5.54 (tested on bk1 and bk3).
>
> I've just took the code from the lm_sensor package and changed it
> to be more or less consistent with the lm75 and amd* patches Christoph
> has done.
> Christoph, maybe you could check this because I don't really understand
> all of the code and maybe it needs some more changes.

Looks fine in principle. A few nitpicks:

> +static struct i2c_algorithm isa_algorithm = {
> + .name = "ISA bus algorithm",
> + .id = I2C_ALGO_ISA,
> + .smbus_xfer = NULL,
> + .functionality = &isa_func,
> +};

There's no need to initialize a struct member to zero/NULL.

> +static int __init isa_init(void)
> +{
> + int res;
> + if (isa_initialized) {
> + pr_debug(DRV_NAME
> + ": i2c-isa.o: Oops, isa_init called a second time!\n");
> + return -EBUSY;
> + }
> + isa_initialized = 0;
> + if ((res = i2c_add_adapter(&isa_adapter))) {
> + printk(KERN_ERR DRV_NAME
> + ": Adapter registration failed, module not inserted\n.");
> + isa_cleanup();
> + return res;
> + }
> + isa_initialized++;
> + printk("i2c-isa.o: ISA bus access for i2c modules initialized.\n");
> + return 0;

Please remove the <foo>_initialized handling. It just obsfucates the code.

> +static void __exit isa_exit(void)
> +{
> + isa_cleanup();
> +}

Just move the code from isa_cleanup into isa_exit directly.

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