Commit 0a9c56dd3876 for kernel

commit 0a9c56dd387605d17dabeedd9fdd2c4c1d0bab7b
Author: Myeonghun Pak <mhun512@gmail.com>
Date:   Wed May 13 15:57:00 2026 +0900

    drm/loongson: Use managed KMS polling

    lsdc_pci_probe() initializes KMS polling before setting up vblank support,
    requesting the IRQ and registering the DRM device. If any of those later
    steps fails, probe returns without finalizing polling. The driver also
    never finalizes polling on regular removal.

    Use drmm_kms_helper_poll_init() so polling is tied to the DRM device
    lifetime and automatically finalized on probe failure and device removal.

    This issue was identified during our ongoing static-analysis research while
    reviewing kernel code.

    Fixes: f39db26c5428 ("drm: Add kms driver for loongson display controller")
    Cc: stable@vger.kernel.org
    Co-developed-by: Ijae Kim <ae878000@gmail.com>
    Signed-off-by: Ijae Kim <ae878000@gmail.com>
    Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
    Acked-by: Jianmin Lv <lvjianmin@loongson.cn>
    Reviewed-by: Huacai Chen <chenhuacai@loongson.cn>
    Signed-off-by: Myeonghun Pak <mhun512@gmail.com>
    Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
    Link: https://patch.msgid.link/20260513065706.23803-1-mhun512@gmail.com

diff --git a/drivers/gpu/drm/loongson/lsdc_drv.c b/drivers/gpu/drm/loongson/lsdc_drv.c
index 1ece1ea42f78..34405073c4d4 100644
--- a/drivers/gpu/drm/loongson/lsdc_drv.c
+++ b/drivers/gpu/drm/loongson/lsdc_drv.c
@@ -293,7 +293,7 @@ static int lsdc_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)

 	vga_client_register(pdev, lsdc_vga_set_decode);

-	drm_kms_helper_poll_init(ddev);
+	drmm_kms_helper_poll_init(ddev);

 	if (loongson_vblank) {
 		ret = drm_vblank_init(ddev, descp->num_of_crtc);