drm: off by one in drm_edid.c

m == num_est3_modes is one past the end of the est3_modes[].

Signed-off-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 326f28e04aab..0acb83a63727 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -1383,7 +1383,7 @@ drm_est3_modes(struct drm_connector *connector, struct detailed_timing *timing)
         for (i = 0; i < 6; i++) {
                 for (j = 7; j > 0; j--) {
                         m = (i * 8) + (7 - j);
-                        if (m > num_est3_modes)
+                        if (m >= num_est3_modes)
                                 break;
                         if (est[i] & (1 << j)) {
                                 mode = drm_find_dmt(connector->dev,