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> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx> --- 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 -- 1.6.5.7 -- 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
