From 5b3e68e1d1cba2638e4edf30345797c316ac47be Mon Sep 17 00:00:00 2001
From: Dinghao Liu <dinghao.liu@zju.edu.cn>
Date: Thu, 8 Apr 2021 10:18:43 +0200
Subject: [PATCH] media: atomisp: Fix runtime PM imbalance in atomisp_pci_probe
Git-commit: 672fe1cf145ab9978c62eb827d6a16aa6b63994b
Patch-mainline: v5.15-rc1
References: stable-5.14.6
[ Upstream commit 672fe1cf145ab9978c62eb827d6a16aa6b63994b ]
When hmm_pool_register() fails, a pairing PM usage counter
increment is needed to keep the counter balanced. It's the
same for the following error paths.
Link: https://lore.kernel.org/linux-media/20210408081850.24278-1-dinghao.liu@zju.edu.cn
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/staging/media/atomisp/pci/atomisp_v4l2.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
index 948769ca6539..af0d83eaa68c 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
@@ -1815,6 +1815,7 @@ static int atomisp_pci_probe(struct pci_dev *pdev, const struct pci_device_id *i
hmm_cleanup();
hmm_pool_unregister(HMM_POOL_TYPE_RESERVED);
hmm_pool_fail:
+ pm_runtime_get_noresume(&pdev->dev);
destroy_workqueue(isp->wdt_work_queue);
wdt_work_queue_fail:
atomisp_acc_cleanup(isp);
--
2.26.2