On Sun, 2020-12-13 at 19:41 -0800, Can Guo wrote:
> Fixes: 88a92d6ae4fe ("scsi: ufs: Serialize eh_work with system PM
> events and async scan")
>
> Signed-off-by: Can Guo <cang@xxxxxxxxxxxxxx>
> ---
> drivers/scsi/ufs/ufshcd.c | 9 +++++----
> 1 file changed, 5 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
> index c1c401b..ef155a9 100644
> --- a/drivers/scsi/ufs/ufshcd.c
> +++ b/drivers/scsi/ufs/ufshcd.c
> @@ -8883,8 +8883,11 @@ int ufshcd_system_suspend(struct ufs_hba *hba)
> int ret = 0;
> ktime_t start = ktime_get();
>
> + if (!hba)
> + return 0;
> +
> down(&hba->eh_sem);
> - if (!hba || !hba->is_powered)
> + if (!hba->is_powered)
> return 0;
Can,
why not moving down(&hba->eh_sem) after "return 0;"?
