From: Bean Huo <huobean@gmail.com>
To: Can Guo <cang@codeaurora.org>,
asutoshd@codeaurora.org, nguyenb@codeaurora.org,
hongwus@codeaurora.org, rnayak@codeaurora.org,
linux-scsi@vger.kernel.org, kernel-team@android.com,
saravanak@google.com, salyzyn@google.com
Cc: Alim Akhtar <alim.akhtar@samsung.com>,
Avri Altman <avri.altman@wdc.com>,
"James E.J. Bottomley" <jejb@linux.ibm.com>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
Stanley Chu <stanley.chu@mediatek.com>,
Bean Huo <beanhuo@micron.com>,
Bart Van Assche <bvanassche@acm.org>,
open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH V2 1/1] scsi: ufs: Fix a possible NULL pointer issue
Date: Mon, 14 Dec 2020 15:32:25 +0100 [thread overview]
Message-ID: <7eb8f335f4eb85385f54c88952f7749750340320.camel@gmail.com> (raw)
In-Reply-To: <1607917296-11735-1-git-send-email-cang@codeaurora.org>
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@codeaurora.org>
> ---
> 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;"?
next prev parent reply other threads:[~2020-12-14 14:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-14 3:41 Can Guo
2020-12-14 14:32 ` Bean Huo [this message]
2020-12-18 5:42 ` Can Guo
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