[PATCH 18/22] drm/amd/pm: check negtive return for table entries

[Jesse Zhang]

Function hwmgr->hwmgr_func->get_num_of_pp_table_entries(hwmgr) returns a negative number

Signed-off-by: Jesse Zhang <Jesse.Zhang at amd.com>
---
 drivers/gpu/drm/amd/pm/powerplay/hwmgr/pp_psm.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/pp_psm.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/pp_psm.c
index f4bd8e9357e2..4433ec4e9cf2 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/pp_psm.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/pp_psm.c
@@ -30,9 +30,8 @@ int psm_init_power_state_table(struct pp_hwmgr *hwmgr)
 {
 	int result;
 	unsigned int i;
-	unsigned int table_entries;
 	struct pp_power_state *state;
-	int size;
+	int size, table_entries;
 
 	if (hwmgr->hwmgr_func->get_num_of_pp_table_entries == NULL)
 		return 0;
@@ -45,7 +44,7 @@ int psm_init_power_state_table(struct pp_hwmgr *hwmgr)
 	hwmgr->ps_size = size = hwmgr->hwmgr_func->get_power_state_size(hwmgr) +
 					  sizeof(struct pp_power_state);
 
-	if (table_entries == 0 || size == 0) {
+	if (table_entries <= 0 || size == 0) {
 		pr_warn("Please check whether power state management is supported on this asic\n");
 		return 0;
 	}
-- 
2.25.1