linux-kernel - Re: [PATCH] clk: socfpga: arria10: Fix memory leak of socfpga

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Date:   Tue, 6 Apr 2021 13:13:56 -0500
From:   Dinh Nguyen <dinguyen@...nel.org>
To:     Colin King <colin.king@...onical.com>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, linux-clk@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] clk: socfpga: arria10: Fix memory leak of socfpga_clk on
 error return



On 4/6/21 12:01 PM, Colin King wrote:
> From: Colin Ian King <colin.king@...onical.com>
> 
> There is an error return path that is not kfree'ing socfpga_clk leading
> to a memory leak. Fix this by adding in the missing kfree call.
> 
> Addresses-Coverity: ("Resource leak")
> Signed-off-by: Colin Ian King <colin.king@...onical.com>
> ---
>   drivers/clk/socfpga/clk-gate-a10.c | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/clk/socfpga/clk-gate-a10.c b/drivers/clk/socfpga/clk-gate-a10.c
> index f5cba8298712..738c53391e39 100644
> --- a/drivers/clk/socfpga/clk-gate-a10.c
> +++ b/drivers/clk/socfpga/clk-gate-a10.c
> @@ -146,6 +146,7 @@ static void __init __socfpga_gate_init(struct device_node *node,
>   		if (IS_ERR(socfpga_clk->sys_mgr_base_addr)) {
>   			pr_err("%s: failed to find altr,sys-mgr regmap!\n",
>   					__func__);
> +			kfree(socfpga_clk);
>   			return;
>   		}
>   	}
> 

Acked-by: Dinh Nguyen <dinguyen@...nel.org>