From patchwork Tue Jun 13 11:06:49 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13278387 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4DAC9CA9EA5 for ; Tue, 13 Jun 2023 11:10:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242149AbjFMLKg (ORCPT ); Tue, 13 Jun 2023 07:10:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49148 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242103AbjFMLKD (ORCPT ); Tue, 13 Jun 2023 07:10:03 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2F75B10E3; Tue, 13 Jun 2023 04:10:02 -0700 (PDT) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id E36212240B; Tue, 13 Jun 2023 11:10:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1686654600; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=7UD3qH0Jecnz6Jrwvr3w6k9CQhko83sOH0nBzjwfJ48=; b=RhPAcbmSSJszenRxT7RweffotDn1VlilAc5nKqiKeksrW7Zoy0GJ/QD2XVTPmx86IveCTq MclrcRrDtVm+H726MshQbbouWH6AfT6m0TaID+Td6UmqMRxhiLaTIH/JpdDRd8xtIqpNrD 7Manifhngao7sBP/4Of4HmB/mF9TEzQ= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1686654600; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=7UD3qH0Jecnz6Jrwvr3w6k9CQhko83sOH0nBzjwfJ48=; b=g33LnGgTYSqQL3eYebYg+/jQAyfoEP6/IlbRVr7g0h90lYz1Q5MWF0qLW2LL9Oh9m/RW8o lv3qYaTcqQ1P/NDQ== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 9B86C13483; Tue, 13 Jun 2023 11:10:00 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id aB03JYhOiGR8CQAAMHmgww (envelope-from ); Tue, 13 Jun 2023 11:10:00 +0000 From: Thomas Zimmermann To: daniel@ffwll.ch, javierm@redhat.com, sam@ravnborg.org, deller@gmx.de, geert+renesas@glider.be, lee@kernel.org, daniel.thompson@linaro.org, jingoohan1@gmail.com, dan.carpenter@linaro.org, michael.j.ruhl@intel.com Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-sh@vger.kernel.org, linux-omap@vger.kernel.org, linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org, Thomas Zimmermann , stable@vger.kernel.org Subject: [PATCH v3 14/38] fbdev/ep93xx-fb: Do not assign to struct fb_info.dev Date: Tue, 13 Jun 2023 13:06:49 +0200 Message-ID: <20230613110953.24176-15-tzimmermann@suse.de> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230613110953.24176-1-tzimmermann@suse.de> References: <20230613110953.24176-1-tzimmermann@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org Do not assing the Linux device to struct fb_info.dev. The call to register_framebuffer() initializes the field to the fbdev device. Drivers should not override its value. Fixes a bug where the driver incorrectly decreases the hardware device's reference counter and leaks the fbdev device. v2: * add Fixes tag (Dan) Signed-off-by: Thomas Zimmermann Fixes: 88017bda96a5 ("ep93xx video driver") Cc: # v2.6.32+ Reviewed-by: Javier Martinez Canillas Reviewed-by: Sam Ravnborg --- drivers/video/fbdev/ep93xx-fb.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/video/fbdev/ep93xx-fb.c b/drivers/video/fbdev/ep93xx-fb.c index f6cd200fe50ff..37309f9dbe828 100644 --- a/drivers/video/fbdev/ep93xx-fb.c +++ b/drivers/video/fbdev/ep93xx-fb.c @@ -474,7 +474,6 @@ static int ep93xxfb_probe(struct platform_device *pdev) if (!info) return -ENOMEM; - info->dev = &pdev->dev; platform_set_drvdata(pdev, info); fbi = info->par; fbi->mach_info = mach_info;