From: SF Markus Elfring <elfring@users.sourceforge.net>
To: linux-alpha@vger.kernel.org, Al Viro <viro@zeniv.linux.org.uk>,
Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
Jan-Benedict Glaw <jbglaw@lug-owl.de>,
Matt Turner <mattst88@gmail.com>,
Nicolas Pitre <nicolas.pitre@linaro.org>,
Richard Cochran <richardcochran@gmail.com>,
Richard Henderson <rth@twiddle.net>,
Thomas Gleixner <tglx@linutronix.de>
Cc: LKML <linux-kernel@vger.kernel.org>, kernel-janitors@vger.kernel.org
Subject: [PATCH 3/4] alpha: Return directly after a failed copy_from_user() or getname() in two functions
Date: Wed, 18 Jan 2017 12:47:54 +0100 [thread overview]
Message-ID: <b4831521-3a80-904b-e341-978d702deb28@users.sourceforge.net> (raw)
In-Reply-To: <de76a580-c693-f422-ad78-d87bafd42bf3@users.sourceforge.net>
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Wed, 18 Jan 2017 11:30:06 +0100
Return directly after a call of the function "copy_from_user" or "getname"
failed at the beginning.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
arch/alpha/kernel/osf_sys.c | 14 ++++----------
1 file changed, 4 insertions(+), 10 deletions(-)
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 73ff5d698591..4310bc79d09c 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -454,16 +454,13 @@ osf_ufs_mount(const char __user *dirname,
struct cdfs_args tmp;
struct filename *devname;
- retval = -EFAULT;
if (copy_from_user(&tmp, args, sizeof(tmp)))
- goto out;
+ return -EFAULT;
devname = getname(tmp.devname);
- retval = PTR_ERR(devname);
if (IS_ERR(devname))
- goto out;
+ return PTR_ERR(devname);
retval = do_mount(devname->name, dirname, "ext2", flags, NULL);
putname(devname);
- out:
return retval;
}
@@ -475,16 +472,13 @@ osf_cdfs_mount(const char __user *dirname,
struct cdfs_args tmp;
struct filename *devname;
- retval = -EFAULT;
if (copy_from_user(&tmp, args, sizeof(tmp)))
- goto out;
+ return -EFAULT;
devname = getname(tmp.devname);
- retval = PTR_ERR(devname);
if (IS_ERR(devname))
- goto out;
+ return PTR_ERR(devname);
retval = do_mount(devname->name, dirname, "iso9660", flags, NULL);
putname(devname);
- out:
return retval;
}
--
2.11.0
next prev parent reply other threads:[~2017-01-18 11:55 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-18 11:40 [PATCH 0/4] alpha: Fine-tuning for five function implementations SF Markus Elfring
2017-01-18 11:45 ` [PATCH 1/4] alpha: Return an error code only as a constant in osf_sigstack() SF Markus Elfring
2017-01-18 11:46 ` [PATCH 2/4] alpha: Move two assignments for the variable "error" in osf_utsname() SF Markus Elfring
2017-01-18 11:47 ` SF Markus Elfring [this message]
2017-01-18 11:50 ` [PATCH 4/4] alpha: Move two assignments for the variable "res" in srm_env_proc_write() SF Markus Elfring
2017-01-18 13:14 ` Jan-Benedict Glaw
2017-01-18 14:27 ` SF Markus Elfring
2017-01-18 14:11 ` Al Viro
2017-01-18 15:41 ` alpha: Checking source code positions for the setting of error codes SF Markus Elfring
2017-01-18 17:43 ` Al Viro
2017-01-19 0:45 ` [PATCH 4/4] alpha: Move two assignments for the variable "res" in srm_env_proc_write() kbuild test robot
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