This is a note to let you know that I've just added the patch titled drm/vboxvideo: fix a NULL vs IS_ERR() check to the 5.10-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-vboxvideo-fix-a-null-vs-is_err-check.patch and it can be found in the queue-5.10 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 8ab9d4259e625688d7106cd03c4221ae7f74895d Author: Dan Carpenter <dan.carpenter@xxxxxxxxxx> Date: Thu Nov 18 14:12:33 2021 +0300 drm/vboxvideo: fix a NULL vs IS_ERR() check [ 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@xxxxxxxxxx> Reviewed-by: Hans de Goede <hdegoede@xxxxxxxxxx> Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx> Link: https://patchwork.freedesktop.org/patch/msgid/20211118111233.GA1147@kili Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/gpu/drm/vboxvideo/vbox_main.c b/drivers/gpu/drm/vboxvideo/vbox_main.c index d68d9bad76747..c5ea880d17b29 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,