From owner-dev-commits-src-main@freebsd.org Wed Mar 3 08:01:57 2021 Return-Path: Delivered-To: dev-commits-src-main@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 899EA56240C; Wed, 3 Mar 2021 08:01:57 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4Dr60P3Xbsz4pQ1; Wed, 3 Mar 2021 08:01:57 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 6C6DE26287; Wed, 3 Mar 2021 08:01:57 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 12381vkf079137; Wed, 3 Mar 2021 08:01:57 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 12381vV9079134; Wed, 3 Mar 2021 08:01:57 GMT (envelope-from git) Date: Wed, 3 Mar 2021 08:01:57 GMT Message-Id: <202103030801.12381vV9079134@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Emmanuel Vadot Subject: git: 3b005d51bd0f - main - backlight: Fix incr/decr with percent value of 0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: manu X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 3b005d51bd0fe4d8d19fb2df4d470b6e8baebf16 Auto-Submitted: auto-generated X-BeenThere: dev-commits-src-main@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commit messages for the main branch of the src repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 03 Mar 2021 08:01:57 -0000 The branch main has been updated by manu: URL: https://cgit.FreeBSD.org/src/commit/?id=3b005d51bd0fe4d8d19fb2df4d470b6e8baebf16 commit 3b005d51bd0fe4d8d19fb2df4d470b6e8baebf16 Author: David Schlachter AuthorDate: 2021-03-03 07:57:35 +0000 Commit: Emmanuel Vadot CommitDate: 2021-03-03 07:57:35 +0000 backlight: Fix incr/decr with percent value of 0 This now does nothing instead of incr/decr by 10% MFC After: 3 days PR: 253736 --- usr.bin/backlight/backlight.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/usr.bin/backlight/backlight.c b/usr.bin/backlight/backlight.c index 1dae0cfe5c62..9cf7a0912e95 100644 --- a/usr.bin/backlight/backlight.c +++ b/usr.bin/backlight/backlight.c @@ -98,7 +98,7 @@ main(int argc, char *argv[]) BACKLIGHTGETSTATUS, BACKLIGHTUPDATESTATUS, BACKLIGHTGETINFO}; - long percent = 0; + long percent = -1; const char *percent_error; uint32_t i; bool setname; @@ -188,15 +188,20 @@ main(int argc, char *argv[]) } break; case BACKLIGHT_SET_BRIGHTNESS: + if (percent == -1) + usage(); props.brightness = percent; if (ioctl(fd, BACKLIGHTUPDATESTATUS, &props) == -1) errx(1, "Cannot update the backlight device"); break; case BACKLIGHT_INCR: case BACKLIGHT_DECR: + if (percent == 0) + /* Avoid any ioctl if we don't have anything to do */ + break; if (ioctl(fd, BACKLIGHTGETSTATUS, &props) == -1) errx(1, "Cannot query the backlight device"); - percent = percent == 0 ? 10 : percent; + percent = percent == -1 ? 10 : percent; percent = action == BACKLIGHT_INCR ? percent : -percent; props.brightness += percent; if ((int)props.brightness < 0)