[media] gscpa: get rid of warning: suggest braces around empty body
There are hundreds of messages like this one, when GSPCA debug is
disabled, when compiled with W=1:
drivers/media/usb/gspca/spca500.c:725:46: warning: suggest braces around empty body in an 'if' statement [-Wempty-body]
Get rid of it, especially as it might actually cause troubles on
some places.
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/usb/gspca/gspca.h b/drivers/media/usb/gspca/gspca.h
index e3eab82..352317d 100644
--- a/drivers/media/usb/gspca/gspca.h
+++ b/drivers/media/usb/gspca/gspca.h
@@ -32,7 +32,7 @@
#define D_USBO 0x00
#define D_V4L2 0x0100
#else
-#define PDEBUG(level, fmt, ...)
+#define PDEBUG(level, fmt, ...) do {} while(0)
#endif
#define GSPCA_MAX_FRAMES 16 /* maximum number of video frame buffers */