[PATCHv2 5/7] 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 --- drivers/gpu/host1x/syncpt.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

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 @@ static struct host1x_syncpt *_host1x_syncpt_alloc(struct host1x *host,

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,