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drm/tegra: replace idr_init() by idr_init_base()

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idr_init() uses base 0 which is an invalid identifier for this driver.
The new function idr_init_base allows IDR to set the ID lookup from
base 1. This avoids all lookups that otherwise starts from 0 since
0 is always unused.

References: commit 6ce711f27500 ("idr: Make 1-based IDRs more efficient")

Signed-off-by: Deepak R Varma <mh12gx2825@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Deepak R Varma 2020-11-05 23:29:28 +05:30 committed by Thierry Reding
parent 5c1d644c09
commit 41f71629b4
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/tegra/drm.c
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@ -90,7 +90,7 @@ static int tegra_drm_open(struct drm_device *drm, struct drm_file *filp)
if (!fpriv)
return -ENOMEM;
idr_init(&fpriv->contexts);
idr_init_base(&fpriv->contexts, 1);
mutex_init(&fpriv->lock);
filp->driver_priv = fpriv;