From: Fabian Frederick <fabf@skynet.be>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org, rjw@rjwysocki.net,
linux-pm@vger.kernel.org, Fabian Frederick <fabf@skynet.be>
Subject: [PATCH 11/14] PM: use atomic_dec_not_zero()
Date: Mon, 30 Jan 2017 19:48:21 +0100 [thread overview]
Message-ID: <20170130184821.18943-1-fabf@skynet.be> (raw)
instead of atomic_add_unless(value, -1, 0)
Signed-off-by: Fabian Frederick <fabf@skynet.be>
---
kernel/power/user.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/power/user.c b/kernel/power/user.c
index 22df9f7..c478572 100644
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -54,7 +54,7 @@ static int snapshot_open(struct inode *inode, struct file *filp)
lock_system_sleep();
- if (!atomic_add_unless(&snapshot_device_available, -1, 0)) {
+ if (!atomic_dec_not_zero(&snapshot_device_available)) {
error = -EBUSY;
goto Unlock;
}
--
2.9.3
reply other threads:[~2017-01-30 18:48 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170130184821.18943-1-fabf@skynet.be \
--to=fabf@skynet.be \
--cc=akpm@linux-foundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pm@vger.kernel.org \
--cc=rjw@rjwysocki.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).