video: Add parentheses around VNBYTES() macro
The VNBYTES() macro needs to have parentheses to prevent some (harmless)
macro expansion bugs. The VNBYTES() macro is used like this:
VID_TO_PIXEL(x) * VNBYTES(vid_priv->bpix)
The * operation is done before the / operation. It still ends up with
the same results, but it's not ideal.
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/include/video.h b/include/video.h
index 2699151..66d109c 100644
--- a/include/video.h
+++ b/include/video.h
@@ -58,7 +58,7 @@
* Convert enum video_log2_bpp to bytes and bits. Note we omit the outer
* brackets to allow multiplication by fractional pixels.
*/
-#define VNBYTES(bpix) (1 << (bpix)) / 8
+#define VNBYTES(bpix) ((1 << (bpix)) / 8)
#define VNBITS(bpix) (1 << (bpix))