From: Dan Carpenter Date: Mon, 26 Aug 2019 13:20:12 +0000 (+0300) Subject: drm/amd/powerplay: Fix an off by one in navi10_get_smu_msg_index() X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=5556b9fed171bbfb53b08b56aef65201fcc4b4b1;p=linux.git drm/amd/powerplay: Fix an off by one in navi10_get_smu_msg_index() 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 Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c index 6f96ed7b97756..9f738c6422682 100644 --- a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c +++ b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c @@ -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];