Commit 05854d48 authored by Deepak R Varma's avatar Deepak R Varma Committed by Daniel Vetter

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

idr_init() uses base 0 which is an invalid identifier. 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 6ce711f2 ("idr: Make 1-based IDRs more efficient")
Signed-off-by: default avatarDeepak R Varma <mh12gx2825@gmail.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20201105173646.GA41732@localhost
parent a5d704d3
......@@ -233,7 +233,7 @@ int vgem_fence_signal_ioctl(struct drm_device *dev,
int vgem_fence_open(struct vgem_file *vfile)
{
mutex_init(&vfile->fence_mutex);
idr_init(&vfile->fence_idr);
idr_init_base(&vfile->fence_idr, 1);
return 0;
}
......
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