• Arnd Bergmann's avatar
    of: include errno.h in of_graph.h · 011d6f5c
    Arnd Bergmann authored
    When CONFIG_OF is disabled, we have to include linux/errno.h before
    including of_graph.h, or get build errors like in the newly added
    sun4i drm driver:
    
    In file included from ../drivers/gpu/drm/sun4i/sun4i_drv.c:14:0:
    include/linux/of_graph.h: In function 'of_graph_parse_endpoint':
    include/linux/of_graph.h:58:10: error: 'ENOSYS' undeclared (first use in this function)
    
    A better solution is to ensure that the header can be included
    by itself, so let's include linux/errno.h here to fix the error
    we just got, and any similar future error.
    Signed-off-by: 's avatarArnd Bergmann <arnd@arndb.de>
    Fixes: 9026e0d1 ("drm: Add Allwinner A10 Display Engine support")
    Signed-off-by: 's avatarRob Herring <robh@kernel.org>
    011d6f5c
of_graph.h 2.78 KB