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From: SF Markus Elfring <elfring@users.sourceforge.net>
To: linux-mips@linux-mips.org,
	"Paul Gortmaker" <paul.gortmaker@windriver.com>,
	"Ralf Bächle" <ralf@linux-mips.org>
Cc: LKML <linux-kernel@vger.kernel.org>, kernel-janitors@vger.kernel.org
Subject: [PATCH 2/3] MIPS: MT: Move an assignment for the variable "retval" in mipsmt_sys_sched_setaffinity()
Date: Wed, 18 Jan 2017 19:55:42 +0100	[thread overview]
Message-ID: <186a1226-41df-6364-2eb9-9a2132571759@users.sourceforge.net> (raw)
In-Reply-To: <bb402413-83e5-9b34-304c-9f4bca6037d9@users.sourceforge.net>

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Wed, 18 Jan 2017 19:18:37 +0100

A local variable was set to an error code in one case before a concrete
error situation was detected. Thus move the corresponding assignment into
an if branch to indicate a software failure there.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 arch/mips/kernel/mips-mt-fpaff.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/mips/kernel/mips-mt-fpaff.c b/arch/mips/kernel/mips-mt-fpaff.c
index 789d7bf4fef3..ddde22787287 100644
--- a/arch/mips/kernel/mips-mt-fpaff.c
+++ b/arch/mips/kernel/mips-mt-fpaff.c
@@ -99,9 +99,10 @@ asmlinkage long mipsmt_sys_sched_setaffinity(pid_t pid, unsigned int len,
 		retval = -ENOMEM;
 		goto out_free_new_mask;
 	}
-	retval = -EPERM;
-	if (!check_same_owner(p) && !capable(CAP_SYS_NICE))
+	if (!check_same_owner(p) && !capable(CAP_SYS_NICE)) {
+		retval = -EPERM;
 		goto out_unlock;
+	}
 
 	retval = security_task_setscheduler(p);
 	if (retval)
-- 
2.11.0

  parent reply	other threads:[~2017-01-18 18:55 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-18 18:52 [PATCH 0/3] MIPS: Fine-tuning for three function implementations SF Markus Elfring
2017-01-18 18:54 ` [PATCH 1/3] MIPS: Return directly in 32_mmap2() SF Markus Elfring
2017-01-18 18:55 ` SF Markus Elfring [this message]
2017-01-18 18:56 ` [PATCH 3/3] MIPS-syscall: Return directly in mips_mmap() SF Markus Elfring

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