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gpu: host1x: Fix memory access in syncpt request

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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>
This commit is contained in:
Arto Merilainen 2013-05-29 13:26:06 +03:00 • committed by Thierry Reding
parent 3364cd2890
commit edeabfcbc1
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/host1x/syncpt.c
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@ -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++) for (i = 0; i < host->info->nb_pts && sp->name; i++, sp++)
; ;
if (sp->dev)
if (i >= host->info->nb_pts)
return NULL; return NULL;
name = kasprintf(GFP_KERNEL, "%02d-%s", sp->id, name = kasprintf(GFP_KERNEL, "%02d-%s", sp->id,