gpu: host1x: Fix memory access in syncpt request
This patch fixes a bad memory access in syncpoint request code. If
no syncpoints were available, the code accessed unreserved memory
area causing unexpected behaviour.
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Acked-By: Terje Bergstrom <tbergstrom@nvidia.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
diff --git a/drivers/gpu/host1x/syncpt.c b/drivers/gpu/host1x/syncpt.c
index 4b49345..2b03f1b 100644
--- a/drivers/gpu/host1x/syncpt.c
+++ b/drivers/gpu/host1x/syncpt.c
@@ -40,7 +40,8 @@
for (i = 0; i < host->info->nb_pts && sp->name; i++, sp++)
;
- if (sp->dev)
+
+ if (i >= host->info->nb_pts)
return NULL;
name = kasprintf(GFP_KERNEL, "%02d-%s", sp->id,