linux-kernel - RE: [PATCH 2/2] misc: xilinx_sdfec: Combine three condition checks into one statement in xsdfec_add

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Date:   Thu, 7 Nov 2019 21:58:01 +0000
From:   Dragan Cvetic <draganc@...inx.com>
To:     Markus Elfring <Markus.Elfring@....de>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        Arnd Bergmann <arnd@...db.de>,
        Derek Kiernan <dkiernan@...inx.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Michal Simek <michals@...inx.com>
CC:     LKML <linux-kernel@...r.kernel.org>,
        "kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>
Subject: RE: [PATCH 2/2] misc: xilinx_sdfec: Combine three condition checks
 into one statement in xsdfec_add_ldpc()



> -----Original Message-----
> From: Markus Elfring [mailto:Markus.Elfring@....de]
> Sent: Tuesday 5 November 2019 18:56
> To: linux-arm-kernel@...ts.infradead.org; Arnd Bergmann <arnd@...db.de>; Derek Kiernan <dkiernan@...inx.com>; Dragan Cvetic
> <draganc@...inx.com>; Greg Kroah-Hartman <gregkh@...uxfoundation.org>; Michal Simek <michals@...inx.com>
> Cc: LKML <linux-kernel@...r.kernel.org>; kernel-janitors@...r.kernel.org
> Subject: [PATCH 2/2] misc: xilinx_sdfec: Combine three condition checks into one statement in xsdfec_add_ldpc()
> 
> From: Markus Elfring <elfring@...rs.sourceforge.net>
> Date: Tue, 5 Nov 2019 19:32:25 +0100
> 
> The same return code was set after three condition checks.
> Thus use a single statement instead.
> 
> Fixes: 20ec628e8007ec75c2f884e00004f39eab6289b5 ("misc: xilinx_sdfec: Add ability to configure LDPC")
> Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
> ---
>  drivers/misc/xilinx_sdfec.c | 16 ++++------------
>  1 file changed, 4 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/misc/xilinx_sdfec.c b/drivers/misc/xilinx_sdfec.c
> index a622fcf4954a..322d5c6e6d12 100644
> --- a/drivers/misc/xilinx_sdfec.c
> +++ b/drivers/misc/xilinx_sdfec.c
> @@ -653,18 +653,10 @@ static int xsdfec_add_ldpc(struct xsdfec_dev *xsdfec, void __user *arg)
>  	if (IS_ERR(ldpc))
>  		return PTR_ERR(ldpc);
> 
> -	if (xsdfec->config.code == XSDFEC_TURBO_CODE) {
> -		ret = -EIO;
> -		goto err_out;
> -	}
> -
> -	/* Verify Device has not started */
> -	if (xsdfec->state == XSDFEC_STARTED) {
> -		ret = -EIO;
> -		goto err_out;
> -	}
> -
> -	if (xsdfec->config.code_wr_protect) {
> +	if (xsdfec->config.code == XSDFEC_TURBO_CODE ||
> +	    /* Verify device has not started */
> +	    xsdfec->state == XSDFEC_STARTED ||
> +	    xsdfec->config.code_wr_protect) {
>  		ret = -EIO;
>  		goto err_out;
>  	}
> --
> 2.24.0

Acked-by: Dragan Cvetic <dragan.cvetic@...inx.com>