Can't call pm_runtime_disable when the architecture support sub device for
'dev->pm.dev' is NUll, or will get below crash log.
[ 10.771551] pc : _raw_spin_lock_irq+0x4c/0xa0
[ 10.771556] lr : __pm_runtime_disable+0x30/0x130
[ 10.771558] sp : ffffffc01e4cb800
[ 10.771559] x29: ffffffc01e4cb800 x28: ffffffdf082108a8
[ 10.771563] x27: ffffffc01e4cbd70 x26: ffffff8605df55f0
[ 10.771567] x25: 0000000000000002 x24: 0000000000000002
[ 10.771570] x23: ffffff85c0dc9c00 x22: 0000000000000001
[ 10.771573] x21: 0000000000000001 x20: 0000000000000000
[ 10.771577] x19: 00000000000000f4 x18: ffffffdf2e9fbe18
[ 10.771580] x17: 0000000000000000 x16: ffffffdf2df13c74
[ 10.771583] x15: 00000000000002ea x14: 0000000000000058
[ 10.771587] x13: ffffffdf2de1b62c x12: ffffffdf2e9e30e4
[ 10.771590] x11: 0000000000000000 x10: 0000000000000001
[ 10.771593] x9 : 0000000000000000 x8 : 00000000000000f4
[ 10.771596] x7 : 6bff6264632c6264 x6 : 0000000000008000
[ 10.771600] x5 : 0080000000000000 x4 : 0000000000000001
[ 10.771603] x3 : 0000000000000008 x2 : 0000000000000001
[ 10.771608] x1 : 0000000000000000 x0 : 00000000000000f4
[ 10.771613] Call trace:
[ 10.771617] _raw_spin_lock_irq+0x4c/0xa0
[ 10.771620] __pm_runtime_disable+0x30/0x130
[ 10.771657] mtk_vcodec_probe+0x69c/0x728 [mtk_vcodec_dec 800cc929d6631f79f9b273254c8db94d0d3500dc]
[ 10.771662] platform_drv_probe+0x9c/0xbc
[ 10.771665] really_probe+0x13c/0x3a0
[ 10.771668] driver_probe_device+0x84/0xc0
[ 10.771671] device_driver_attach+0x54/0x78
Fixes: ba31a5b39400 ("media: mtk-vcodec: Remove mtk_vcodec_release_dec_pm")
Signed-off-by: Yunfei Dong <yunfei.dong@xxxxxxxxxxxx>
---
- Won't crash when the driver running in error condition.
---
drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c
index bba7b932f4fa..2b6eaa222846 100644
--- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c
+++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c
@@ -454,7 +454,8 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
if (IS_VDEC_LAT_ARCH(dev->vdec_pdata->hw_arch))
destroy_workqueue(dev->core_workqueue);
err_res:
- pm_runtime_disable(dev->pm.dev);
+ if (!dev->vdec_pdata->is_subdev_supported)
+ pm_runtime_disable(dev->pm.dev);
err_dec_pm:
mtk_vcodec_fw_release(dev->fw_handler);
return ret;
--
2.18.0
