From: Dan Carpenter dan.carpenter@oracle.com
stable inclusion from stable-v5.10.94 commit a33eef23a658d1120b2b7b724c80b0cad3da9b78 bugzilla: https://gitee.com/openeuler/kernel/issues/I531X9
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ Upstream commit cebbb5c46d0cb0615fd0c62dea9b44273d0a9780 ]
The devm_gen_pool_create() function never returns NULL, it returns error pointers.
Fixes: 4cc9b565454b ("drm/vboxvideo: Use devm_gen_pool_create") Signed-off-by: Dan Carpenter dan.carpenter@oracle.com Reviewed-by: Hans de Goede hdegoede@redhat.com Signed-off-by: Hans de Goede hdegoede@redhat.com Link: https://patchwork.freedesktop.org/patch/msgid/20211118111233.GA1147@kili Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com Acked-by: Xie XiuQi xiexiuqi@huawei.com --- drivers/gpu/drm/vboxvideo/vbox_main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/vboxvideo/vbox_main.c b/drivers/gpu/drm/vboxvideo/vbox_main.c index d68d9bad7674..c5ea880d17b2 100644 --- a/drivers/gpu/drm/vboxvideo/vbox_main.c +++ b/drivers/gpu/drm/vboxvideo/vbox_main.c @@ -123,8 +123,8 @@ int vbox_hw_init(struct vbox_private *vbox) /* Create guest-heap mem-pool use 2^4 = 16 byte chunks */ vbox->guest_pool = devm_gen_pool_create(vbox->ddev.dev, 4, -1, "vboxvideo-accel"); - if (!vbox->guest_pool) - return -ENOMEM; + if (IS_ERR(vbox->guest_pool)) + return PTR_ERR(vbox->guest_pool);
ret = gen_pool_add_virt(vbox->guest_pool, (unsigned long)vbox->guest_heap,