RE: [PATCH] drivers/perf: fix the missed ida_simple_remove() in ddr_perf_probe()

From: Aisheng Dong
Date: Thu Jun 17 2021 - 08:24:19 EST


> From: Jing Xiangfeng <jingxiangfeng@xxxxxxxxxx>
> Sent: Thursday, June 17, 2021 8:26 PM
> Subject: [PATCH] drivers/perf: fix the missed ida_simple_remove() in
> ddr_perf_probe()
>

drivers/perf: imx8_ddr: xxxx

Otherwise:

Reviewed-by: Dong Aisheng <aisheng.dong@xxxxxxx>

Regards
Aisheng

> ddr_perf_probe() misses to call ida_simple_remove() in an error path.
> Jump to cpuhp_state_err to fix it.
>
> Signed-off-by: Jing Xiangfeng <jingxiangfeng@xxxxxxxxxx>
> ---
> drivers/perf/fsl_imx8_ddr_perf.c | 6 ++++--
> 1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/perf/fsl_imx8_ddr_perf.c b/drivers/perf/fsl_imx8_ddr_perf.c
> index 2bbb93188064..7b87aaf267d5 100644
> --- a/drivers/perf/fsl_imx8_ddr_perf.c
> +++ b/drivers/perf/fsl_imx8_ddr_perf.c
> @@ -705,8 +705,10 @@ static int ddr_perf_probe(struct platform_device
> *pdev)
>
> name = devm_kasprintf(&pdev->dev, GFP_KERNEL,
> DDR_PERF_DEV_NAME "%d",
> num);
> - if (!name)
> - return -ENOMEM;
> + if (!name) {
> + ret = -ENOMEM;
> + goto cpuhp_state_err;
> + }
>
> pmu->devtype_data = of_device_get_match_data(&pdev->dev);
>
> --
> 2.26.0.106.g9fadedd