diff options
| author | Stefan Agner <stefan.agner@toradex.com> | 2013-11-26 09:42:47 +0100 |
|---|---|---|
| committer | Stefan Agner <stefan.agner@toradex.com> | 2013-11-26 09:42:47 +0100 |
| commit | c1ac904677dad4383182331ee5f11cf006a0b8de (patch) | |
| tree | df662b35e6bee277507417233a8edab8e57baab7 /drivers | |
| parent | c7c52865252fc2106134cc50ce4823ef78d7e10e (diff) | |
hdmi: avoid division by zero oops
After suspend, mode filter might be called with empty yres. This leads
to division by zero when checking aspect ratio. Return as invalid mode
when yres is zero.
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/video/tegra/dc/hdmi.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/video/tegra/dc/hdmi.c b/drivers/video/tegra/dc/hdmi.c index a0aa27fc4114..ae45f04172aa 100644 --- a/drivers/video/tegra/dc/hdmi.c +++ b/drivers/video/tegra/dc/hdmi.c @@ -1258,6 +1258,9 @@ static bool tegra_dc_hdmi_valid_asp_ratio(const struct tegra_dc *dc, int m_aspratio = 0; int s_aspratio = 0; + if (!mode->yres) + return false; + /* To check the aspect upto two decimal digits, calculate in % */ m_aspratio = (mode->xres*100 / mode->yres); |