[Intel-gfx] [PATCH] drm/i915/gvt: IS_ERR() vs NULL bug in intel_gvt_update_reg_whitelist()

[Dan Carpenter]

The shmem_pin_map() function returns NULL, it doesn't return error
pointers.

Fixes: 97ea656521c8 ("drm/i915/gvt: Parse default state to update reg 
whitelist")
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
---
 drivers/gpu/drm/i915/gvt/cmd_parser.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/gvt/cmd_parser.c 
b/drivers/gpu/drm/i915/gvt/cmd_parser.c
index b9eb75a2b400..1c35a41620ae 100644
--- a/drivers/gpu/drm/i915/gvt/cmd_parser.c
+++ b/drivers/gpu/drm/i915/gvt/cmd_parser.c
@@ -3117,9 +3117,9 @@ void intel_gvt_update_reg_whitelist(struct intel_vgpu 
*vgpu)
                        continue;
 
                vaddr = shmem_pin_map(engine->default_state);
-               if (IS_ERR(vaddr)) {
-                       gvt_err("failed to map %s->default state, err:%zd\n",
-                               engine->name, PTR_ERR(vaddr));
+               if (!vaddr) {
+                       gvt_err("failed to map %s->default state\n",
+                               engine->name);
                        return;
                }
 
-- 
2.35.1