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| author | Dmitry Osipenko <digetx@gmail.com> | 2017-06-15 02:18:25 +0300 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2017-06-15 14:12:25 +0200 |
| commit | d6c153ec85856f5ad29adc20739ec28edeb7c042 (patch) | |
| tree | 4dc6b2ff3516ed510f883dd12e422c63af192b45 | |
| parent | 1066a8959d04785b9d2e9cbb91aaef922b710c4a (diff) | |
| download | linux-d6c153ec85856f5ad29adc20739ec28edeb7c042.tar.bz2 | |
drm/tegra: Correct idr_alloc() minimum id
The client ID 0 is reserved by the host1x/cdma to mark the timeout timer
work as already been scheduled and context ID is used as the clients one.
This fixes spurious CDMA timeouts.
Fixes: bdd2f9cd10eb ("drm/tegra: Don't leak kernel pointer to userspace")
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: http://patchwork.freedesktop.org/patch/msgid/9c19a44219acd988e678cf9abe21363911184625.1497480754.git.digetx@gmail.com
| -rw-r--r-- | drivers/gpu/drm/tegra/drm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c index fefa715c4315..81f86a67c10d 100644 --- a/drivers/gpu/drm/tegra/drm.c +++ b/drivers/gpu/drm/tegra/drm.c @@ -539,7 +539,7 @@ static int tegra_client_open(struct tegra_drm_file *fpriv, if (err < 0) return err; - err = idr_alloc(&fpriv->contexts, context, 0, 0, GFP_KERNEL); + err = idr_alloc(&fpriv->contexts, context, 1, 0, GFP_KERNEL); if (err < 0) { client->ops->close_channel(context); return err; |