V4L/DVB (11669): uvc: fix compile warning

The 2.6.30 kernel generates this warning:

uvc_driver.c:1729: warning: 'ret' may be used uninitialized in this function

I guess some new warning flag must have been turned on since this warning
didn't appear with older kernels (gcc version 4.3.1). It's also a bogus
warning, but since this code didn't comply to the coding standard anyway
I've modified it to 1) remove the warning and 2) conform to the coding
standard.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/video/uvc/uvc_driver.c b/drivers/media/video/uvc/uvc_driver.c
index 399412d..507dc85 100644 (file)
--- a/drivers/media/video/uvc/uvc_driver.c
+++ b/drivers/media/video/uvc/uvc_driver.c
@@ -1726,14 +1726,17 @@ static int uvc_suspend(struct usb_interface *intf, pm_message_t message)
 static int __uvc_resume(struct usb_interface *intf, int reset)
 {
        struct uvc_device *dev = usb_get_intfdata(intf);
-       int ret;
 
        uvc_trace(UVC_TRACE_SUSPEND, "Resuming interface %u\n",
                intf->cur_altsetting->desc.bInterfaceNumber);
 
        if (intf->cur_altsetting->desc.bInterfaceSubClass == SC_VIDEOCONTROL) {
-               if (reset && (ret = uvc_ctrl_resume_device(dev)) < 0)
-                       return ret;
+               if (reset) {
+                       int ret = uvc_ctrl_resume_device(dev);
+
+                       if (ret < 0)
+                               return ret;
+               }
 
                return uvc_status_resume(dev);
        }