From mboxrd@z Thu Jan 1 00:00:00 1970 From: SF Markus Elfring Date: Mon, 28 Dec 2015 21:56:47 +0000 Subject: [PATCH] [media] au0828: Refactoring for start_urb_transfer() Message-Id: <5681B01F.4070401@users.sourceforge.net> List-Id: References: <566ABCD9.1060404@users.sourceforge.net> In-Reply-To: <566ABCD9.1060404@users.sourceforge.net> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-media@vger.kernel.org, Mauro Carvalho Chehab Cc: LKML , kernel-janitors@vger.kernel.org, Julia Lawall From: Markus Elfring Date: Mon, 28 Dec 2015 22:52:48 +0100 This issue was detected by using the Coccinelle software. 1. Let us return directly if a buffer allocation failed. 2. Delete the jump label "err" then. 3. Drop the explicit initialisation for the variable "ret" at the beginning. 4. Return zero as a constant at the end. Signed-off-by: Markus Elfring --- drivers/media/usb/au0828/au0828-dvb.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/drivers/media/usb/au0828/au0828-dvb.c b/drivers/media/usb/au0828/au0828-dvb.c index cd542b4..e5f1e20 100644 --- a/drivers/media/usb/au0828/au0828-dvb.c +++ b/drivers/media/usb/au0828/au0828-dvb.c @@ -181,7 +181,7 @@ static int stop_urb_transfer(struct au0828_dev *dev) static int start_urb_transfer(struct au0828_dev *dev) { struct urb *purb; - int i, ret = -ENOMEM; + int i, ret; dprintk(2, "%s()\n", __func__); @@ -194,7 +194,7 @@ static int start_urb_transfer(struct au0828_dev *dev) dev->urbs[i] = usb_alloc_urb(0, GFP_KERNEL); if (!dev->urbs[i]) - goto err; + return -ENOMEM; purb = dev->urbs[i]; @@ -207,9 +207,10 @@ static int start_urb_transfer(struct au0828_dev *dev) if (!purb->transfer_buffer) { usb_free_urb(purb); dev->urbs[i] = NULL; + ret = -ENOMEM; pr_err("%s: failed big buffer allocation, err = %d\n", __func__, ret); - goto err; + return ret; } purb->status = -EINPROGRESS; @@ -235,10 +236,7 @@ static int start_urb_transfer(struct au0828_dev *dev) } dev->urb_streaming = true; - ret = 0; - -err: - return ret; + return 0; } static void au0828_start_transport(struct au0828_dev *dev) -- 2.6.3