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    Subject[PATCH] drm/hdlcd: Delete an unnecessary check before drm_fbdev_cma_hotplug_event()
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    From: Markus Elfring <elfring@users.sourceforge.net>
    Date: Sat, 16 Jul 2016 09:10:40 +0200

    The drm_fbdev_cma_hotplug_event() function tests whether its argument
    is NULL and then returns immediately.
    Thus the test around the call is not needed.

    This issue was detected by using the Coccinelle software.

    Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
    ---
    drivers/gpu/drm/arm/hdlcd_drv.c | 3 +--
    1 file changed, 1 insertion(+), 2 deletions(-)

    diff --git a/drivers/gpu/drm/arm/hdlcd_drv.c b/drivers/gpu/drm/arm/hdlcd_drv.c
    index 28b8cd1..9b1aefe 100644
    --- a/drivers/gpu/drm/arm/hdlcd_drv.c
    +++ b/drivers/gpu/drm/arm/hdlcd_drv.c
    @@ -102,8 +102,7 @@ static void hdlcd_fb_output_poll_changed(struct drm_device *drm)
    {
    struct hdlcd_drm_private *hdlcd = drm->dev_private;

    - if (hdlcd->fbdev)
    - drm_fbdev_cma_hotplug_event(hdlcd->fbdev);
    + drm_fbdev_cma_hotplug_event(hdlcd->fbdev);
    }

    static const struct drm_mode_config_funcs hdlcd_mode_config_funcs = {
    --
    2.9.1
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