Commit d6c153ec authored by Dmitry Osipenko's avatar Dmitry Osipenko Committed by Thierry Reding

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: bdd2f9cd ("drm/tegra: Don't leak kernel pointer to userspace")
Signed-off-by: default avatarDmitry Osipenko <digetx@gmail.com>
Reviewed-by: default avatarMikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
Link: http://patchwork.freedesktop.org/patch/msgid/9c19a44219acd988e678cf9abe21363911184625.1497480754.git.digetx@gmail.com
parent 1066a895
...@@ -539,7 +539,7 @@ static int tegra_client_open(struct tegra_drm_file *fpriv, ...@@ -539,7 +539,7 @@ static int tegra_client_open(struct tegra_drm_file *fpriv,
if (err < 0) if (err < 0)
return err; 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) { if (err < 0) {
client->ops->close_channel(context); client->ops->close_channel(context);
return err; return err;
......
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