This is a note to let you know that I've just added the patch titled
drm/i915/gvt: IS_ERR() vs NULL bug in intel_gvt_update_reg_whitelist()
to the 5.18-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-i915-gvt-is_err-vs-null-bug-in-intel_gvt_update_.patch
and it can be found in the queue-5.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 2dff322e11a20947cddb1222a5b410fc63335e90
Author: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Date: Fri Jul 8 11:41:06 2022 +0300
drm/i915/gvt: IS_ERR() vs NULL bug in intel_gvt_update_reg_whitelist()
[ Upstream commit e87197fbd137c888fd6c871c72fe7e89445dd015 ]
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")
Reviewed-by: Andrzej Hajda <andrzej.hajda@xxxxxxxxx>
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Zhenyu Wang <zhenyuw@xxxxxxxxxxxxxxx>
Link: http://patchwork.freedesktop.org/patch/msgid/Ysftoia2BPUyqVcD@kili
Acked-by: Zhenyu Wang <zhenyuw@xxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/i915/gvt/cmd_parser.c b/drivers/gpu/drm/i915/gvt/cmd_parser.c
index 2459213b6c87..f49c1e8b8df7 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;
}
