Re: [PATCH] spi: rockchip: Fix excessive check for get_fifo_len()
From: Mark Brown
Date: Mon Sep 23 2024 - 08:55:16 EST
On Mon, Sep 23, 2024 at 07:55:16PM +0800, Jinjie Ruan wrote:
> Since commit 13a96935e6f6 ("spi: rockchip: Support 64-location deep
> FIFOs"), get_fifo_len() return 64 or 32, never return 0, so remove
> the excessive check in rockchip_spi_probe().
>
> Fixes: 13a96935e6f6 ("spi: rockchip: Support 64-location deep FIFOs")
This is clearly not a bug fix, it's at most a code cleanup but...
> @@ -819,11 +819,6 @@ static int rockchip_spi_probe(struct platform_device *pdev)
> }
>
> rs->fifo_len = get_fifo_len(rs);
> - if (!rs->fifo_len) {
> - dev_err(&pdev->dev, "Failed to get fifo length\n");
> - ret = -EINVAL;
> - goto err_put_ctlr;
> - }
...given that the probe() path isn't exactly a hot path is there really
any benefit from this, if someone does add the option of returning 0
it'll silently break.
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