From: Christoph Hellwig <hch@infradead.org>
To: Christian Brauner <christian@brauner.io>
Cc: linux-kernel@vger.kernel.org, ebiederm@xmission.com,
gregkh@linuxfoundation.org, mingo@kernel.org,
james.morris@microsoft.com, keescook@chromium.org,
peterz@infradead.org, sds@tycho.nsa.gov, viro@zeniv.linux.org.uk,
akpm@linux-foundation.org, oleg@redhat.com
Subject: Re: [PATCH 8/8] signal: simplify rt_sigaction()
Date: Mon, 28 May 2018 23:47:19 -0700 [thread overview]
Message-ID: <20180529064719.GA14800@infradead.org> (raw)
In-Reply-To: <20180528134916.7568-9-christian@brauner.io>
> + if (act)
> if (copy_from_user(&new_sa.sa, act, sizeof(new_sa.sa)))
> return -EFAULT;
if (act && copy_from_user(&new_sa.sa, act, sizeof(new_sa.sa)))
return -EFAULT;
> ret = do_sigaction(sig, act ? &new_sa : NULL, oact ? &old_sa : NULL);
> -
> - if (!ret && oact) {
> + if (!ret && oact)
> if (copy_to_user(oact, &old_sa.sa, sizeof(old_sa.sa)))
> return -EFAULT;
> - }
ret = do_sigaction(sig, act ? &new_sa : NULL, oact ? &old_sa : NULL);
if (!ret && oact && copy_to_user(oact, &old_sa.sa, sizeof(old_sa.sa)))
return -EFAULT;
Althought I'd personaly write it as:
ret = do_sigaction(sig, act ? &new_sa : NULL, oact ? &old_sa : NULL);
if (ret)
return ret;
if (oact && copy_to_user(oact, &old_sa.sa, sizeof(old_sa.sa)))
return -EFAULT;
return 0;
next prev parent reply other threads:[~2018-05-29 6:47 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-28 13:49 [PATCH 0/8] signal: refactor some functions Christian Brauner
2018-05-28 13:49 ` [PATCH 1/8] signal: make force_sigsegv() void Christian Brauner
2018-05-28 13:49 ` [PATCH 2/8] signal: make kill_as_cred_perm() return bool Christian Brauner
2018-05-28 14:07 ` Al Viro
2018-05-28 18:31 ` Christian Brauner
2018-05-28 13:49 ` [PATCH 3/8] signal: make may_ptrace_stop() " Christian Brauner
2018-05-28 14:12 ` Al Viro
2018-05-28 18:30 ` Christian Brauner
2018-05-28 13:49 ` [PATCH 4/8] signal: add copy_pending() helper Christian Brauner
2018-05-28 13:49 ` [PATCH 5/8] signal: flatten do_send_sig_info() Christian Brauner
2018-05-28 14:15 ` Al Viro
2018-05-28 15:07 ` Christian Brauner
2018-05-28 13:49 ` [PATCH 6/8] signal: drop else branch in do_signal_stop() Christian Brauner
2018-05-28 13:49 ` [PATCH 7/8] signal: make do_sigpending() void Christian Brauner
2018-05-28 14:20 ` Al Viro
2018-05-28 13:49 ` [PATCH 8/8] signal: simplify rt_sigaction() Christian Brauner
2018-05-29 6:47 ` Christoph Hellwig [this message]
2018-05-29 10:24 ` Christian Brauner
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