[PATCH 2/5] gma500: fix a missing break in cdv_intel_crtc_mode_set

[Xiaomeng Tong]

Instead of exiting the loop as expected when an entry is found, the
list_for_each_entry() continues until the traversal is complete. It
could lead to a invalid reference to 'ddi_select' after the loop, and
could lead to multiple 'is_*' flags being set with true mistakely, too.

The invalid reference to 'ddi_select' is here:
        cdv_dpll_set_clock_cdv(dev, crtc, &clock, is_lvds, ddi_select);

To fix this, when found the entry, add a break after the switch statement.

Fixes: d66760962d75 ("gma500: Program the DPLL lane based on the selected 
digitial port")
Signed-off-by: Xiaomeng Tong <xiam0nd.t...@gmail.com>
---
 drivers/gpu/drm/gma500/cdv_intel_display.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/gma500/cdv_intel_display.c 
b/drivers/gpu/drm/gma500/cdv_intel_display.c
index 94ebc48a4349..3e93019b17cb 100644
--- a/drivers/gpu/drm/gma500/cdv_intel_display.c
+++ b/drivers/gpu/drm/gma500/cdv_intel_display.c
@@ -616,6 +616,8 @@ static int cdv_intel_crtc_mode_set(struct drm_crtc *crtc,
                        DRM_ERROR("invalid output type.\n");
                        return 0;
                }
+
+               break;
        }
 
        if (dev_priv->dplla_96mhz)
-- 
2.17.1