Re: [PATCH 3/9] staging: ks7010: Return directly after a failed kmalloc()

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On Sun, Jul 17, 2016 at 08:58:14PM +0200, Julia Lawall wrote:
> 
> 
> On Sun, 17 Jul 2016, SF Markus Elfring wrote:
> 
> > From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
> > Date: Sun, 17 Jul 2016 15:55:02 +0200
> >
> > Return directly after a memory allocation failed at the beginning.
> >
> > Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
> > ---
> >  drivers/staging/ks7010/ks7010_sdio.c | 19 +++++++------------
> >  1 file changed, 7 insertions(+), 12 deletions(-)
> >
> > diff --git a/drivers/staging/ks7010/ks7010_sdio.c b/drivers/staging/ks7010/ks7010_sdio.c
> > index 3622fba..9b954cb 100644
> > --- a/drivers/staging/ks7010/ks7010_sdio.c
> > +++ b/drivers/staging/ks7010/ks7010_sdio.c
> > @@ -713,10 +713,8 @@ static int ks7010_sdio_update_index(struct ks_wlan_private *priv, u32 index)
> >  	unsigned char *data_buf;
> >
> >  	data_buf = kmalloc(sizeof(u32), GFP_KERNEL);
> > -	if (!data_buf) {
> > -		rc = 1;
> > -		goto error_out;
> > -	}
> > +	if (!data_buf)
> > +		return 1;
> 
> One could rather wonder why the function has such strange error values...

Agreed. Markus, can you check if we can use -ENOMEM in those places.

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