[PATCH 1/2] drm/amdgpu: avoid null pointer dereference

[Chen, Guchun]

null ptr should be checked first to avoid null ptr access

Change-Id: I85c0a096eef77cad3a34265c995b1845451e04d0
Signed-off-by: Guchun Chen <guchun.chen at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
index 090daf595469..c3090f0eb604 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
@@ -1334,13 +1334,13 @@ static int amdgpu_ras_save_bad_pages(struct amdgpu_device *adev)
 {
 	struct amdgpu_ras *con = amdgpu_ras_get_context(adev);
 	struct ras_err_handler_data *data;
-	struct amdgpu_ras_eeprom_control *control =
-					&adev->psp.ras.ras->eeprom_control;
+	struct amdgpu_ras_eeprom_control *control;
 	int save_count;
 
 	if (!con || !con->eh_data)
 		return 0;
 
+	control = &adev->psp.ras.ras->eeprom_control;
 	data = con->eh_data;
 	save_count = data->count - control->num_recs;
 	/* only new entries are saved */
-- 
2.17.1