linux-kernel - Re: [PATCH] UBI: fix return error code

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Message-ID: <20151209120217.GE24852@sudip-pc>
Date:	Wed, 9 Dec 2015 17:32:17 +0530
From:	Sudip Mukherjee <sudipm.mukherjee@...il.com>
To:	Richard Weinberger <richard@....at>
Cc:	Artem Bityutskiy <dedekind1@...il.com>,
	David Woodhouse <dwmw2@...radead.org>,
	Brian Norris <computersforpeace@...il.com>,
	linux-kernel@...r.kernel.org, linux-mtd@...ts.infradead.org
Subject: Re: [PATCH] UBI: fix return error code

On Fri, Nov 20, 2015 at 11:17:55AM +0100, Richard Weinberger wrote:
> Am 20.11.2015 um 11:14 schrieb Sudip Mukherjee:
> > We are checking dfs_rootdir for error value or NULL. But in the
> > conditional ternary operator we returned -ENODEV if dfs_rootdir contains
> > an error value and returned PTR_ERR(dfs_rootdir) if dfs_rootdir is NULL.
> > So in the case of dfs_rootdir being NULL we actually assigned 0 to err
> > and returned it to the caller implying a success.
> > Lets return -ENODEV when dfs_rootdir is NULL else return
> > PTR_ERR(dfs_rootdir).
> > 
> > Signed-off-by: Sudip Mukherjee <sudip@...torindia.org>
> > ---
> >  drivers/mtd/ubi/debug.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/drivers/mtd/ubi/debug.c b/drivers/mtd/ubi/debug.c
> > index b077e43..c4cb15a 100644
> > --- a/drivers/mtd/ubi/debug.c
> > +++ b/drivers/mtd/ubi/debug.c
> > @@ -236,7 +236,7 @@ int ubi_debugfs_init(void)
> >  
> >  	dfs_rootdir = debugfs_create_dir("ubi", NULL);
> >  	if (IS_ERR_OR_NULL(dfs_rootdir)) {
> > -		int err = dfs_rootdir ? -ENODEV : PTR_ERR(dfs_rootdir);
> > +		int err = dfs_rootdir ? PTR_ERR(dfs_rootdir) : -ENODEV;
> >  
> 
> Nice catch!

Hi Richard,
It is still not on linus-next. Did you miss it?

regards
sudip
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