diff options
author | Raghavendra VK <rvk@nvidia.com> | 2012-08-27 11:00:12 -0700 |
---|---|---|
committer | Varun Colbert <vcolbert@nvidia.com> | 2012-09-10 14:29:21 -0700 |
commit | 30b0fef255afc76c510b8ccb6f3a517cdb82f9c8 (patch) | |
tree | a3ed70bf52e42e9d340bf4b67e7087a91156089d /drivers/video/tegra/dc/dc.c | |
parent | 75bdd482816eba85414a71b86535fa87db336aa3 (diff) |
tegra: dc: Fix div by zero in frame time computation.
- Set frame duration to 0 in NULL modeset.
bug 1039104
Reviewed-on: http://git-master/r/127603
(cherry picked from commit 604cda21d79ed168e9863f0122eb0c23fa1a901b)
Change-Id: I0be1b96529e40a374e4507ecd3da990677d4cbd4
Signed-off-by: Raghavendra VK <rvk@nvidia.com>
Reviewed-on: http://git-master/r/130943
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
Tested-by: Bharat Nihalani <bnihalani@nvidia.com>
Diffstat (limited to 'drivers/video/tegra/dc/dc.c')
-rw-r--r-- | drivers/video/tegra/dc/dc.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/video/tegra/dc/dc.c b/drivers/video/tegra/dc/dc.c index 434a8b991b6e..d01df2f520b8 100644 --- a/drivers/video/tegra/dc/dc.c +++ b/drivers/video/tegra/dc/dc.c @@ -1097,11 +1097,13 @@ static void tegra_dc_continuous_irq(struct tegra_dc *dc, unsigned long status) /* XXX: Not sure if we limit look ahead to 1 frame */ bool tegra_dc_is_within_n_vsync(struct tegra_dc *dc, s64 ts) { + BUG_ON(!dc->frametime_ns); return ((ts - dc->frame_end_timestamp) < dc->frametime_ns); } bool tegra_dc_does_vsync_separate(struct tegra_dc *dc, s64 new_ts, s64 old_ts) { + BUG_ON(!dc->frametime_ns); return (((new_ts - old_ts) > dc->frametime_ns) || (div_s64((new_ts - dc->frame_end_timestamp), dc->frametime_ns) != div_s64((old_ts - dc->frame_end_timestamp), |