On Wednesday 09 December 2009, Julia Lawall wrote: > From: Julia Lawall <julia@xxxxxxx> > > Use ERR_PTR and IS_ERR rather than mixing integers and pointers. > > The semantic match that finds this problem is as follows: > (http://coccinelle.lip6.fr/) > > // <smpl> > @@ > expression *E; > @@ > > * E < 0 > // </smpl> > > Signed-off-by: Julia Lawall <julia@xxxxxxx> Acked-by: David Brownell <dbrownell@xxxxxxxxxxxxxxxxxxxxx> > > --- > drivers/usb/gadget/f_audio.c | 8 +++++--- > 1 files changed, 5 insertions(+), 3 deletions(-) > > diff --git a/drivers/usb/gadget/f_audio.c b/drivers/usb/gadget/f_audio.c > index c43c89f..0f2eee1 100644 > --- a/drivers/usb/gadget/f_audio.c > +++ b/drivers/usb/gadget/f_audio.c > @@ -252,12 +252,12 @@ static struct f_audio_buf *f_audio_buffer_alloc(int buf_size) > > copy_buf = kzalloc(sizeof *copy_buf, GFP_ATOMIC); > if (!copy_buf) > - return (struct f_audio_buf *)-ENOMEM; > + return ERR_PTR(-ENOMEM); > > copy_buf->buf = kzalloc(buf_size, GFP_ATOMIC); > if (!copy_buf->buf) { > kfree(copy_buf); > - return (struct f_audio_buf *)-ENOMEM; > + return ERR_PTR(-ENOMEM); > } > > return copy_buf; > @@ -332,7 +332,7 @@ static int f_audio_out_ep_complete(struct usb_ep *ep, struct usb_request *req) > list_add_tail(©_buf->list, &audio->play_queue); > schedule_work(&audio->playback_work); > copy_buf = f_audio_buffer_alloc(audio_buf_size); > - if (copy_buf < 0) > + if (IS_ERR(copy_buf)) > return -ENOMEM; > } > > @@ -576,6 +576,8 @@ static int f_audio_set_alt(struct usb_function *f, unsigned intf, unsigned alt) > usb_ep_enable(out_ep, audio->out_desc); > out_ep->driver_data = audio; > audio->copy_buf = f_audio_buffer_alloc(audio_buf_size); > + if (IS_ERR(audio->copy_buf)) > + return -ENOMEM; > > /* > * allocate a bunch of read buffers > > -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
