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gpu: host1x: Fix potential out-of-bounds access 

The check for valid syncpoint IDs is off by one. While at it, rewrite
the check to make it more easily understandable.

Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding 2017-03-09 20:04:57 +01:00
parent 05d2f3ea0d
commit 8cadb01d2c
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/host1x/syncpt.c
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@ -484,7 +484,7 @@ unsigned int host1x_syncpt_nb_mlocks(struct host1x *host)
struct host1x_syncpt *host1x_syncpt_get(struct host1x *host, unsigned int id) struct host1x_syncpt *host1x_syncpt_get(struct host1x *host, unsigned int id)
{ {
if (host->info->nb_pts < id) if (id >= host->info->nb_pts)
return NULL; return NULL;
return host->syncpt + id; return host->syncpt + id;