fbdev: omapfb: Remove writeback deadcode

Value of enum parameter 'plane' is initialized in dss_init_overlays and
cannot take the value OMAP_DSS_WB. Function dispc_ovl_setup_common could
be called with this value of parameter only from dispc_wb_setup, which has
never been used and has been removed in commit 4f55bb03801a
("omapfb: Remove unused writeback code"). The code in the if-branch is
unreachable.

Remove unreachable branch.

Found by Linux Verification Center (linuxtesting.org) with SVACE static
analysis tool.

Signed-off-by: Leonid Arapov <arapovl839@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/video/fbdev/omap2/omapfb/dss/dispc.c b/drivers/video/fbdev/omap2/omapfb/dss/dispc.c
index ccb96a5be07e46749687e92690e84ab5e13baf3f..8db0748628242d0a7cbe47cb76be5d2ec32ed85a 100644 (file)
--- a/drivers/video/fbdev/omap2/omapfb/dss/dispc.c
+++ b/drivers/video/fbdev/omap2/omapfb/dss/dispc.c
@@ -2659,13 +2659,8 @@ static int dispc_ovl_setup_common(enum omap_plane plane,
        row_inc = 0;
        pix_inc = 0;
 
-       if (plane == OMAP_DSS_WB) {
-               frame_width = out_width;
-               frame_height = out_height;
-       } else {
-               frame_width = in_width;
-               frame_height = height;
-       }
+       frame_width = in_width;
+       frame_height = height;
 
        if (rotation_type == OMAP_DSS_ROT_TILER)
                calc_tiler_rotation_offset(screen_width, frame_width,