exynos: fix type-punned pointer build warning

As like the commit ecc2a097294d ("xf86drm: Fix type-punned pointer
build warning"), this fixes following build warning.

   exynos_drm.c: In function 'exynos_handle_event':
   exynos_drm.c:420:15: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
      e = (struct drm_event *) &buffer[i];
                  ^

Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Reviewed-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

diff --git a/exynos/exynos_drm.c b/exynos/exynos_drm.c
index b961e52..f6204f1 100644 (file)
--- a/exynos/exynos_drm.c
+++ b/exynos/exynos_drm.c
@@ -417,7 +417,7 @@ exynos_handle_event(struct exynos_device *dev, struct exynos_event_context *ctx)
 
        i = 0;
        while (i < len) {
-               e = (struct drm_event *) &buffer[i];
+               e = (struct drm_event *)(buffer + i);
                switch (e->type) {
                case DRM_EVENT_VBLANK:
                        if (evctx->version < 1 ||