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[PATCH 5/5] staging: comedi: usbduxsigma: Move an assignment in usbduxsigma_alloc_usb_buffers()

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  [PATCH 5/5] staging: comedi: usbduxsigma: Move an assignment in  usbduxsigma_alloc_usb_buffers() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-12-08 12:40 +0100

#1538449 — [PATCH 5/5] staging: comedi: usbduxsigma: Move an assignment in usbduxsigma_alloc_usb_buffers()

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Thu, 8 Dec 2016 11:20:38 +0100

Move one assignment for the local variable "usb" so that its setting
will only be performed after some memory allocations succeeded
by this function.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 drivers/staging/comedi/drivers/usbduxsigma.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/usbduxsigma.c b/drivers/staging/comedi/drivers/usbduxsigma.c
index 8c04aa5339f3..7c1f9198447a 100644
--- a/drivers/staging/comedi/drivers/usbduxsigma.c
+++ b/drivers/staging/comedi/drivers/usbduxsigma.c
@@ -1338,7 +1338,7 @@ static int usbduxsigma_firmware_upload(struct comedi_device *dev,
 
 static int usbduxsigma_alloc_usb_buffers(struct comedi_device *dev)
 {
-	struct usb_device *usb = comedi_to_usb_dev(dev);
+	struct usb_device *usb;
 	struct usbduxsigma_private *devpriv = dev->private;
 	struct urb *urb;
 	int i, x;
@@ -1367,6 +1367,7 @@ static int usbduxsigma_alloc_usb_buffers(struct comedi_device *dev)
 	if (!devpriv->ao_urbs)
 		goto free_ai_urbs;
 
+	usb = comedi_to_usb_dev(dev);
 	for (i = 0; i < devpriv->n_ai_urbs; i++) {
 		/* one frame: 1ms */
 		urb = usb_alloc_urb(1, GFP_KERNEL);
-- 
2.11.0

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