doc: replace @return by Return:

Sphinx expects Return: and not @return to indicate a return value.

find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
diff --git a/drivers/video/tegra.c b/drivers/video/tegra.c
index d60132e..3f9fcd0 100644
--- a/drivers/video/tegra.c
+++ b/drivers/video/tegra.c
@@ -262,7 +262,7 @@
  * @param blob			Device tree blob
  * @param priv			Driver's private data
  * @param default_lcd_base	Default address of LCD frame buffer
- * @return 0 if ok, -1 on error (unsupported bits per pixel)
+ * Return: 0 if ok, -1 on error (unsupported bits per pixel)
  */
 static int tegra_display_probe(const void *blob, struct tegra_lcd_priv *priv,
 			       void *default_lcd_base)