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 53F9A5683 for ; Mon, 3 Apr 2023 14:16:19 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C9B05C433D2; Mon, 3 Apr 2023 14:16:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1680531379; bh=gqBs6u1uq3XP3qLdDqQO+mfTeSfnMU488vbDoIcARWI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=E7xGkHKUldQ6dIrVQyB+CGLmsKW7pf485Zv45lSjRKd89ufyx6vVxzl/R0z13TC8r d0Us1I+BeSZ99l4Xxa4hMVS3u8GC/1WyFXkE4/J0vQwxz28mHDkikeL6PloJvIUpmi MVOfw3wGY/Av2HUFOsKSAgF3qxsD+muA31Ui+Xds= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Peter Chen , Xu Yang Subject: [PATCH 4.19 41/84] usb: chipdea: core: fix return -EINVAL if request role is the same with current role Date: Mon, 3 Apr 2023 16:08:42 +0200 Message-Id: <20230403140354.790551843@linuxfoundation.org> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230403140353.406927418@linuxfoundation.org> References: <20230403140353.406927418@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Xu Yang commit 3670de80678961eda7fa2220883fc77c16868951 upstream. It should not return -EINVAL if the request role is the same with current role, return non-error and without do anything instead. Fixes: a932a8041ff9 ("usb: chipidea: core: add sysfs group") cc: Acked-by: Peter Chen Signed-off-by: Xu Yang Link: https://lore.kernel.org/r/20230317061516.2451728-1-xu.yang_2@nxp.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/chipidea/core.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) --- a/drivers/usb/chipidea/core.c +++ b/drivers/usb/chipidea/core.c @@ -872,9 +872,12 @@ static ssize_t role_store(struct device strlen(ci->roles[role]->name))) break; - if (role == CI_ROLE_END || role == ci->role) + if (role == CI_ROLE_END) return -EINVAL; + if (role == ci->role) + return n; + pm_runtime_get_sync(dev); disable_irq(ci->irq); ci_role_stop(ci);