diff options
author | Dominik Sliwa <dominik.sliwa@toradex.com> | 2016-07-15 11:44:36 +0200 |
---|---|---|
committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2016-09-29 06:48:40 +0200 |
commit | d20d9941202fa728df9260d2c812a6444afa4821 (patch) | |
tree | 931d78bc1880dc3e7bf78cf5c65200aadbc0d332 | |
parent | be10973d1498e39431e82ad2a70f19a7872cd4b6 (diff) |
tegra: Fix unsupported HDMI screen crash
Connecting unsuported screen to HDMI
resulted in kernel panic.
Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com>
Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
-rw-r--r-- | drivers/video/tegra/fb.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/video/tegra/fb.c b/drivers/video/tegra/fb.c index d0e7809cd83d..e3fae09106af 100644 --- a/drivers/video/tegra/fb.c +++ b/drivers/video/tegra/fb.c @@ -556,6 +556,11 @@ void tegra_fb_update_monspecs(struct tegra_fb_info *fb_info, tegra_fb_find_best_mode(&var, &info->modelist); } + /* Fail if no supported modes were found */ + if (info->mode == NULL) { + dev_warn(&fb_info->ndev->dev, "Display %s not supported\n", specs->monitor); + return; + } /* Prepare fb info with new mode details */ fb_videomode_to_var(&info->var, info->mode); event.info = fb_info->info; |