linux-kernel - Re: [PATCH] omapfb/dss: Delete an error message for a failed memory allocation in three functions

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <d29a0bae-7b6f-b8f6-6809-5a097cd5a26a@ti.com>
Date:   Mon, 27 Nov 2017 10:43:54 -0600
From:   "Andrew F. Davis" <afd@...com>
To:     SF Markus Elfring <elfring@...rs.sourceforge.net>,
        <linux-omap@...r.kernel.org>, <linux-fbdev@...r.kernel.org>,
        <dri-devel@...ts.freedesktop.org>,
        Arvind Yadav <arvind.yadav.cs@...il.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Tomi Valkeinen <tomi.valkeinen@...com>
CC:     LKML <linux-kernel@...r.kernel.org>,
        <kernel-janitors@...r.kernel.org>
Subject: Re: [PATCH] omapfb/dss: Delete an error message for a failed memory
 allocation in three functions

On 11/26/2017 12:55 PM, SF Markus Elfring wrote:
> From: Markus Elfring <elfring@...rs.sourceforge.net>
> Date: Sun, 26 Nov 2017 19:46:09 +0100
> 
> Omit an extra message for a memory allocation failure in these functions.
> 
> This issue was detected by using the Coccinelle software.
> 
> Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
> ---

nak, unlike many others, these message give extra info on which
allocation failed, that can be useful.

>  drivers/video/fbdev/omap2/omapfb/dss/dispc.c    | 4 +---
>  drivers/video/fbdev/omap2/omapfb/dss/dss.c      | 4 +---
>  drivers/video/fbdev/omap2/omapfb/dss/hdmi_phy.c | 4 +---
>  3 files changed, 3 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/video/fbdev/omap2/omapfb/dss/dispc.c b/drivers/video/fbdev/omap2/omapfb/dss/dispc.c
> index 7a75dfda9845..10164a3bae4a 100644
> --- a/drivers/video/fbdev/omap2/omapfb/dss/dispc.c
> +++ b/drivers/video/fbdev/omap2/omapfb/dss/dispc.c
> @@ -3982,10 +3982,8 @@ static int dispc_init_features(struct platform_device *pdev)
>  	struct dispc_features *dst;
>  
>  	dst = devm_kzalloc(&pdev->dev, sizeof(*dst), GFP_KERNEL);
> -	if (!dst) {
> -		dev_err(&pdev->dev, "Failed to allocate DISPC Features\n");
> +	if (!dst)
>  		return -ENOMEM;
> -	}
>  
>  	switch (omapdss_get_version()) {
>  	case OMAPDSS_VER_OMAP24xx:
> diff --git a/drivers/video/fbdev/omap2/omapfb/dss/dss.c b/drivers/video/fbdev/omap2/omapfb/dss/dss.c
> index 48c6500c24e1..a5de13777e2b 100644
> --- a/drivers/video/fbdev/omap2/omapfb/dss/dss.c
> +++ b/drivers/video/fbdev/omap2/omapfb/dss/dss.c
> @@ -893,10 +893,8 @@ static int dss_init_features(struct platform_device *pdev)
>  	struct dss_features *dst;
>  
>  	dst = devm_kzalloc(&pdev->dev, sizeof(*dst), GFP_KERNEL);
> -	if (!dst) {
> -		dev_err(&pdev->dev, "Failed to allocate local DSS Features\n");
> +	if (!dst)
>  		return -ENOMEM;
> -	}
>  
>  	switch (omapdss_get_version()) {
>  	case OMAPDSS_VER_OMAP24xx:
> diff --git a/drivers/video/fbdev/omap2/omapfb/dss/hdmi_phy.c b/drivers/video/fbdev/omap2/omapfb/dss/hdmi_phy.c
> index 9a13c35fd6d8..d25eea10c665 100644
> --- a/drivers/video/fbdev/omap2/omapfb/dss/hdmi_phy.c
> +++ b/drivers/video/fbdev/omap2/omapfb/dss/hdmi_phy.c
> @@ -195,10 +195,8 @@ static int hdmi_phy_init_features(struct platform_device *pdev)
>  	const struct hdmi_phy_features *src;
>  
>  	dst = devm_kzalloc(&pdev->dev, sizeof(*dst), GFP_KERNEL);
> -	if (!dst) {
> -		dev_err(&pdev->dev, "Failed to allocate HDMI PHY Features\n");
> +	if (!dst)
>  		return -ENOMEM;
> -	}
>  
>  	switch (omapdss_get_version()) {
>  	case OMAPDSS_VER_OMAP4430_ES1:
>