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 9584143AAA for ; Wed, 15 Nov 2023 20:45:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="itNSJVzL" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 410ABC433C9; Wed, 15 Nov 2023 20:45:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1700081100; bh=wj6k97fiFFNcM62uGwytbJ8C5ZMPLyKRXadCrA5Vo2E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=itNSJVzLptB8Hxfmp5awbSl24b7QQBrcvN+K6o9Z9a97ItrVjmQJX0R3qGzloPUg/ rFdaXNIR1xlzXXxnjQtZ8wY2P9B8tGsmo87Q0B4cCq1skGs2KVaG2tJPDClqv83FbW 8jKRAKVizkyq9sAnUw7xahIxtKv4UCsZAfcXmIIQ= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Dan Carpenter , Stephen Boyd , Sasha Levin Subject: [PATCH 4.19 21/88] clk: keystone: pll: fix a couple NULL vs IS_ERR() checks Date: Wed, 15 Nov 2023 15:35:33 -0500 Message-ID: <20231115191427.458822273@linuxfoundation.org> X-Mailer: git-send-email 2.42.1 In-Reply-To: <20231115191426.221330369@linuxfoundation.org> References: <20231115191426.221330369@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 4.19-stable review patch. If anyone has any objections, please let me know. ------------------ From: Dan Carpenter [ Upstream commit a5d14f8b551eb1551c10053653ee8e27f19672fa ] The clk_register_divider() and clk_register_mux() functions returns error pointers on error but this code checks for NULL. Fix that. Fixes: b9e0d40c0d83 ("clk: keystone: add Keystone PLL clock driver") Signed-off-by: Dan Carpenter Link: https://lore.kernel.org/r/d9da4c97-0da9-499f-9a21-1f8e3f148dc1@moroto.mountain Signed-off-by: Stephen Boyd Signed-off-by: Sasha Levin --- drivers/clk/keystone/pll.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/drivers/clk/keystone/pll.c b/drivers/clk/keystone/pll.c index 526694c2a6c97..a75ece5992394 100644 --- a/drivers/clk/keystone/pll.c +++ b/drivers/clk/keystone/pll.c @@ -285,12 +285,13 @@ static void __init of_pll_div_clk_init(struct device_node *node) clk = clk_register_divider(NULL, clk_name, parent_name, 0, reg, shift, mask, 0, NULL); - if (clk) { - of_clk_add_provider(node, of_clk_src_simple_get, clk); - } else { + if (IS_ERR(clk)) { pr_err("%s: error registering divider %s\n", __func__, clk_name); iounmap(reg); + return; } + + of_clk_add_provider(node, of_clk_src_simple_get, clk); } CLK_OF_DECLARE(pll_divider_clock, "ti,keystone,pll-divider-clock", of_pll_div_clk_init); @@ -332,9 +333,11 @@ static void __init of_pll_mux_clk_init(struct device_node *node) clk = clk_register_mux(NULL, clk_name, (const char **)&parents, ARRAY_SIZE(parents) , 0, reg, shift, mask, 0, NULL); - if (clk) - of_clk_add_provider(node, of_clk_src_simple_get, clk); - else + if (IS_ERR(clk)) { pr_err("%s: error registering mux %s\n", __func__, clk_name); + return; + } + + of_clk_add_provider(node, of_clk_src_simple_get, clk); } CLK_OF_DECLARE(pll_mux_clock, "ti,keystone,pll-mux-clock", of_pll_mux_clk_init); -- 2.42.0