From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Martin Wilck <mwilck@suse.com>, Christoph Hellwig <hch@lst.de>,
Lee Duncan <lduncan@suse.com>,
"Martin K . Petersen" <martin.petersen@oracle.com>,
Sasha Levin <sashal@kernel.org>,
linux-scsi@vger.kernel.org, target-devel@vger.kernel.org
Subject: [PATCH AUTOSEL 4.19 11/15] scsi: target: pscsi: Clean up after failure in pscsi_map_sg()
Date: Mon, 29 Mar 2021 18:23:22 -0400 [thread overview]
Message-ID: <20210329222327.2383533-11-sashal@kernel.org> (raw)
In-Reply-To: <20210329222327.2383533-1-sashal@kernel.org>
From: Martin Wilck <mwilck@suse.com>
[ Upstream commit 36fa766faa0c822c860e636fe82b1affcd022974 ]
If pscsi_map_sg() fails, make sure to drop references to already allocated
bios.
Link: https://lore.kernel.org/r/20210323212431.15306-2-mwilck@suse.com
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/target/target_core_pscsi.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c
index 47d76c862014..02c4e3beb264 100644
--- a/drivers/target/target_core_pscsi.c
+++ b/drivers/target/target_core_pscsi.c
@@ -970,6 +970,14 @@ pscsi_map_sg(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents,
return 0;
fail:
+ if (bio)
+ bio_put(bio);
+ while (req->bio) {
+ bio = req->bio;
+ req->bio = bio->bi_next;
+ bio_put(bio);
+ }
+ req->biotail = NULL;
return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
}
--
2.30.1
next prev parent reply other threads:[~2021-03-29 22:33 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-29 22:23 [PATCH AUTOSEL 4.19 01/15] ARM: dts: am33xx: add aliases for mmc interfaces Sasha Levin
2021-03-29 22:23 ` [PATCH AUTOSEL 4.19 02/15] bus: ti-sysc: Fix warning on unbind if reset is not deasserted Sasha Levin
2021-03-29 22:23 ` [PATCH AUTOSEL 4.19 03/15] platform/x86: intel-hid: Support Lenovo ThinkPad X1 Tablet Gen 2 Sasha Levin
2021-03-29 22:23 ` [PATCH AUTOSEL 4.19 04/15] net: pxa168_eth: Fix a potential data race in pxa168_eth_remove Sasha Levin
2021-03-29 22:23 ` [PATCH AUTOSEL 4.19 05/15] mISDN: fix crash in fritzpci Sasha Levin
2021-03-29 22:23 ` [PATCH AUTOSEL 4.19 06/15] mac80211: fix double free in ibss_leave Sasha Levin
2021-03-29 22:23 ` [PATCH AUTOSEL 4.19 07/15] mac80211: choose first enabled channel for monitor Sasha Levin
2021-03-29 22:23 ` [PATCH AUTOSEL 4.19 08/15] drm/msm: Ratelimit invalid-fence message Sasha Levin
2021-03-29 22:23 ` [PATCH AUTOSEL 4.19 09/15] platform/x86: thinkpad_acpi: Allow the FnLock LED to change state Sasha Levin
2021-03-29 22:23 ` [PATCH AUTOSEL 4.19 10/15] x86/build: Turn off -fcf-protection for realmode targets Sasha Levin
2021-03-29 22:23 ` Sasha Levin [this message]
2021-03-29 22:23 ` [PATCH AUTOSEL 4.19 12/15] ia64: mca: allocate early mca with GFP_ATOMIC Sasha Levin
2021-03-29 22:23 ` [PATCH AUTOSEL 4.19 13/15] ia64: fix format strings for err_inject Sasha Levin
2021-03-29 22:23 ` [PATCH AUTOSEL 4.19 14/15] cifs: revalidate mapping when we open files for SMB1 POSIX Sasha Levin
2021-03-29 22:23 ` [PATCH AUTOSEL 4.19 15/15] cifs: Silently ignore unknown oplock break handle Sasha Levin
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