Re: [PATCH 4/4 v2] net/smsc911x: Provide common clock functionality
From: Linus Walleij
Date: Tue Dec 25 2012 - 19:51:06 EST
On Fri, Dec 21, 2012 at 12:41 PM, Lee Jones <lee.jones@xxxxxxxxxx> wrote:
> + if (IS_ERR(pdata->clk)) {
> + ret = clk_prepare_enable(pdata->clk);
> + if (ret < 0)
> + netdev_err(ndev, "failed to enable clock %d\n", ret);
> + }
I think you got all of these backwards now, shouldn't it be if
(!IS_ERR(pdata->clk)) { } ...?
It's late here but enlighten me if I don't get it.
> + if (IS_ERR(pdata->clk))
> + clk_disable_unprepare(pdata->clk);
Dito.
> + /* Request clock */
> + pdata->clk = clk_get(&pdev->dev, NULL);
> + if (IS_ERR(pdata->clk))
> + netdev_warn(ndev, "couldn't get clock %li\n", PTR_ERR(pdata->clk));
This one seems correct though.
> + /* Free clock */
> + if (IS_ERR(pdata->clk)) {
> + clk_put(pdata->clk);
> + pdata->clk = NULL;
> + }
Should be !IS_ERR()
Yours,
Linus Walleij
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