From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3DE9D143861; Thu, 13 Jun 2024 11:48:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718279334; cv=none; b=hnRq+HX60s/8eD01RQozp3XtDtZx8lCRJbcTYLM3MQcXrEEBlddZylGmfoLI6l+Qskuc75BzB0wkj+maCSXD96umRZ57H+JIPG78HSvsv0ypnF7HVwYtjHmnMm4FL/8x3mrQ43Yxuy8LFIN/I4+zDB4qRnwrGVNEH6/Om64uA84= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718279334; c=relaxed/simple; bh=Lq6sCIz2tLATC3JBE1MO5RrSiR14I+yGWYc+j0x/OpU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=fbjxG1bxgNDO21bxcw0kfGyIhZ2UI7wJkUNRhH7xZJdBvENJCY3jUTMVO041cQFt694+uocjutqg1GNKUCDYUgDDOcLT/pH4KzljdHpG3Ltiet85hL1htKpAo5YG7cFKR0oCYUJRDcgnC2SbjGqtDNFeUBOBqcxzTJLFDI192YQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=l+L3jGn2; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="l+L3jGn2" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B70BFC2BBFC; Thu, 13 Jun 2024 11:48:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1718279334; bh=Lq6sCIz2tLATC3JBE1MO5RrSiR14I+yGWYc+j0x/OpU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=l+L3jGn2QtE+AUPBtu6bR2SqRpZdGIW9Sk1GZ/K0LTDv+AWuuFf3P0Pe2WZRVD89J XAnRBZTZU6cFs7lGspAUSSuD1GqpAMyfutSRhUsPdWOj96u3Hr2dvA+EJGR9q+1xP1 o6ZtyWrgfjqa3myOneWiUkZ0yddKKRwSDN/kMDOA= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Sakari Ailus , Hans Verkuil Subject: [PATCH 6.9 041/157] media: v4l: async: Dont set notifiers V4L2 device if registering fails Date: Thu, 13 Jun 2024 13:32:46 +0200 Message-ID: <20240613113229.012671656@linuxfoundation.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240613113227.389465891@linuxfoundation.org> References: <20240613113227.389465891@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Sakari Ailus commit 46bc0234ad38063ce550ecf135c1a52458f0a804 upstream. The V4L2 device used to be set when the notifier was registered but this has been moved to the notifier initialisation. Don't touch the V4L2 device if registration fails. Fixes: b8ec754ae4c5 ("media: v4l: async: Set v4l2_device and subdev in async notifier init") Cc: # for 6.6 and later Signed-off-by: Sakari Ailus Signed-off-by: Hans Verkuil Signed-off-by: Greg Kroah-Hartman --- drivers/media/v4l2-core/v4l2-async.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) --- a/drivers/media/v4l2-core/v4l2-async.c +++ b/drivers/media/v4l2-core/v4l2-async.c @@ -618,16 +618,10 @@ err_unlock: int v4l2_async_nf_register(struct v4l2_async_notifier *notifier) { - int ret; - if (WARN_ON(!notifier->v4l2_dev == !notifier->sd)) return -EINVAL; - ret = __v4l2_async_nf_register(notifier); - if (ret) - notifier->v4l2_dev = NULL; - - return ret; + return __v4l2_async_nf_register(notifier); } EXPORT_SYMBOL(v4l2_async_nf_register);