linux-kernel - Re: [PATCH 1/2] PRUSS UIO driver support

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Date:	Sat, 19 Feb 2011 13:26:42 +0000
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Pratheesh Gangadhar <pratheesh@...com>
Cc:	davinci-linux-open-source@...ux.davincidsp.com, gregkh@...e.de,
	amit.chatterjee@...com, hjk@...utronix.de,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 1/2] PRUSS UIO driver support

On Fri, Feb 18, 2011 at 08:35:29PM +0530, Pratheesh Gangadhar wrote:
> +static int __devinit pruss_probe(struct platform_device *dev)
> +{
> +	int ret = -ENODEV;
> +	int count = 0;
> +	struct resource *regs_pruram, *regs_l3ram, *regs_ddr;
> +	char *string;
> +
> +	/* Power on PRU in case its not done as part of boot-loader */
> +	pruss_clk = clk_get(&dev->dev, "pruss");
> +	if (IS_ERR(pruss_clk)) {
> +		dev_err(&dev->dev, "Failed to get clock\n");
> +		ret = PTR_ERR(pruss_clk);
> +		pruss_clk = NULL;

Delete this line.

...
> +out_free:
> +	for (count = 0; count < MAX_PRUSS_EVTOUT_INSTANCE; count++)
> +		kfree(info[count]);
> +
> +	if (pruss_clk != NULL)

	if (!IS_ERR(pruss_clk))

> +		clk_put(pruss_clk);
...
> +static int __devexit pruss_remove(struct platform_device *dev)
...
> +	platform_set_drvdata(dev, NULL);
> +
> +	if (pruss_clk != NULL)

	if (!IS_ERR(pruss_clk))

> +		clk_put(pruss_clk);
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