From patchwork Thu Nov 16 07:50:17 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Stein X-Patchwork-Id: 13457676 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=tq-group.com header.i=@tq-group.com header.b="HQLNp6Oi" Received: from mx1.tq-group.com (mx1.tq-group.com [93.104.207.81]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4BBC4120; Wed, 15 Nov 2023 23:50:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tq-group.com; i=@tq-group.com; q=dns/txt; s=key1; t=1700121020; x=1731657020; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=kjXlzMKI4SAh9l1+GsCDYTAjNE/uMze9MZXtOyCmaPM=; b=HQLNp6OiqIDewTqK16FrYbVgOkqNFAEBumH+BqcJr1hkkkJT1NNZlale 7WFR3OvkYqRlvvW4t/R51TP2JX0Yn+vF3eQTlujw1iODESKjt0GNlj8sP DmVMVTRU7Gm3ijhPWu+xv7ppBJzjgET9ujCishDMf+UFIMZ41y59fMyQo OeTP4aahmFCBuAtBAqhxQUhHyXUOi5EfM/WUAmW0z0nT6vn/mQrFgzN7C QeeFdpyUEwjYcF8IoquNEBSYaGP8Ho6fDnWLZyYecA093UWQv6ij1bjlX asqXehEZH535cJaaf/S0KgFioL6XsN1z+CWN6LLTjbpJ4p7Rfc68xKBd/ Q==; X-IronPort-AV: E=Sophos;i="6.03,307,1694728800"; d="scan'208";a="34010892" Received: from vtuxmail01.tq-net.de ([10.115.0.20]) by mx1.tq-group.com with ESMTP; 16 Nov 2023 08:50:18 +0100 Received: from steina-w.tq-net.de (steina-w.tq-net.de [10.123.53.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by vtuxmail01.tq-net.de (Postfix) with ESMTPSA id 30CB928007F; Thu, 16 Nov 2023 08:50:18 +0100 (CET) From: Alexander Stein To: Thierry Reding , =?utf-8?q?Uwe_Kleine-K=C3=B6n?= =?utf-8?q?ig?= , Lee Jones , Daniel Thompson , Jingoo Han , Helge Deller Cc: Alexander Stein , linux-pwm@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org Subject: [PATCH 1/1] backlight: pwm_bl: Use dev_err_probe Date: Thu, 16 Nov 2023 08:50:17 +0100 Message-Id: <20231116075017.939926-1-alexander.stein@ew.tq-group.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-fbdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Let dev_err_probe handle the -EPROBE_DEFER case and also add an entry to /sys/kernel/debug/devices_deferred when deferred. Signed-off-by: Alexander Stein --- drivers/video/backlight/pwm_bl.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c index 289bd9ce4d36d..3825c2b67c53b 100644 --- a/drivers/video/backlight/pwm_bl.c +++ b/drivers/video/backlight/pwm_bl.c @@ -509,8 +509,7 @@ static int pwm_backlight_probe(struct platform_device *pdev) pb->pwm = devm_pwm_get(&pdev->dev, NULL); if (IS_ERR(pb->pwm)) { ret = PTR_ERR(pb->pwm); - if (ret != -EPROBE_DEFER) - dev_err(&pdev->dev, "unable to request PWM\n"); + dev_err_probe(&pdev->dev, ret, "unable to request PWM\n"); goto err_alloc; }