From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dan Carpenter , Gregory CLEMENT , Stephen Boyd , Sasha Levin Subject: [PATCH 4.18 030/235] clk: mvebu: armada-37xx-periph: Fix wrong return value in get_parent Date: Mon, 24 Sep 2018 13:50:16 +0200 Message-Id: <20180924113107.843318939@linuxfoundation.org> In-Reply-To: <20180924113103.999624566@linuxfoundation.org> References: <20180924113103.999624566@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: 4.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Gregory CLEMENT [ Upstream commit 616bf80d381da13fbb392ebff06f46f946e3ee84 ] The return value of the get_parent operation is a u8, whereas a -EINVAL was returned. This wrong value was return if the value was bigger that the number of parent but this case was already handled by the core. So we can just remove this chunk of code to fix the issue. Reported-by: Dan Carpenter Fixes: 9818a7a4fd10 ("clk: mvebu: armada-37xx-periph: prepare cpu clk to be used with DVFS") Signed-off-by: Gregory CLEMENT Signed-off-by: Stephen Boyd Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/clk/mvebu/armada-37xx-periph.c | 3 --- 1 file changed, 3 deletions(-) --- a/drivers/clk/mvebu/armada-37xx-periph.c +++ b/drivers/clk/mvebu/armada-37xx-periph.c @@ -429,9 +429,6 @@ static u8 clk_pm_cpu_get_parent(struct c val &= pm_cpu->mask_mux; } - if (val >= num_parents) - return -EINVAL; - return val; }