linux-kernel - [PATCH v3] scsi: mpt3sas: wait_for_completion

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <1420016053-19521-1-git-send-email-der.herr@hofr.at>
Date:	Wed, 31 Dec 2014 03:54:12 -0500
From:	Nicholas Mc Guire <der.herr@...r.at>
To:	Nagalakshmi Nandigama <nagalakshmi.nandigama@...gotech.com>
Cc:	Praveen Krishnamoorthy <praveen.krishnamoorthy@...gotech.com>,
	Sreekanth Reddy <sreekanth.reddy@...gotech.com>,
	Abhijit Mahajan <abhijit.mahajan@...gotech.com>,
	"James E.J. Bottomley" <JBottomley@...allels.com>,
	Joe Lawrence <joe.lawrence@...atus.com>,
	MPT-FusionLinux.pdl@...gotech.com, linux-scsi@...r.kernel.org,
	linux-kernel@...r.kernel.org, Nicholas Mc Guire <der.herr@...r.at>
Subject: [PATCH v3] scsi: mpt3sas: wait_for_completion_timeout timeout not reported

wait_for_completion_timeout reaching timeout was being ignored,
this also should fail if timeout condition occurs.

v3: proper labeling and attribution - no change of actual patch

this was only compile tested with x86_64_defconfig + 
CONFIG_SCSI_LOWLEVEL=y, CONFIG_SCSI_MPT3SAS=m

patch is against linux-next 3.19.0-rc1 -next-20141226

Acked-by: Joe Lawrence <joe.lawrence@...atus.com>
Signed-off-by: Nicholas Mc Guire <der.herr@...r.at>
---
 drivers/scsi/mpt3sas/mpt3sas_config.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/mpt3sas/mpt3sas_config.c b/drivers/scsi/mpt3sas/mpt3sas_config.c
index 4472c2a..04ff21b 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_config.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_config.c
@@ -393,7 +393,7 @@ _config_request(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigRequest_t
 	mpt3sas_base_put_smid_default(ioc, smid);
 	timeleft = wait_for_completion_timeout(&ioc->config_cmds.done,
 	    timeout*HZ);
-	if (!(ioc->config_cmds.status & MPT3_CMD_COMPLETE)) {
+	if (timeleft == 0 || !(ioc->config_cmds.status & MPT3_CMD_COMPLETE)) {
 		pr_err(MPT3SAS_FMT "%s: timeout\n",
 		    ioc->name, __func__);
 		_debug_dump_mf(mpi_request,
-- 
1.7.10.4

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/