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drm/amd/powerplay: Fix an off by one in navi10_get_smu_msg_index()

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The navi10_message_map[] array has SMU_MSG_MAX_COUNT elements so the ">"
has to be changed to ">=" to prevent reading one element beyond the end
of the array.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Dan Carpenter 2019-08-26 16:20:12 +03:00 • committed by Alex Deucher
parent ed8a5fb2a6
commit 5556b9fed1
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/powerplay/navi10_ppt.c
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@ -213,7 +213,7 @@ static int navi10_get_smu_msg_index(struct smu_context *smc, uint32_t index)
{
struct smu_11_0_cmn2aisc_mapping mapping;
if (index > SMU_MSG_MAX_COUNT)
if (index >= SMU_MSG_MAX_COUNT)
return -EINVAL;
mapping = navi10_message_map[index];