From nobody Mon Sep 28 19:23:45 2026 Received: from out203-205-221-242.mail.qq.com (out203-205-221-242.mail.qq.com [203.205.221.242]) (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 D9B48476CFE; Tue, 18 Aug 2026 13:19:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=203.205.221.242 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787059184; cv=none; b=REMX3xcZkpX1UVEGoQJN4V6ONLRy2RQLxY2iQqVGp6ue6xfSMaq3Zp9vzhyg6r3faHq/L1xmFE7+PNAMk2kWu+/jf58sXVQ8crmtsZliRAlH3qHer5NfKgts6EuaiXnAjbalrYnuPNuAl6WlWzfKSUDeh79HdxIS1saX08I7lqs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787059184; c=relaxed/simple; bh=raa2KNOPY2mQTdR+iGOkon9LB6rg4uy4ku9Frf+CxxM=; h=Message-ID:From:Subject:To:Cc:Date; b=IiwQZCx+IweAzVbKYWYaIvzvXLBmizd8x6r4KSQryCglzS6vi6e/hHYJgtD/PB4UBIgCJpUnoTjnwr2LXUB67SR9xMtS5ebT6MCbUfqYQBkiohFeLqmZPXzpmuJqvssNJtUByPPWrn7J/LSP1kMmusP0Dq4hEpTnHeXbi6CH7GU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=qq.com; spf=pass smtp.mailfrom=qq.com; dkim=pass (1024-bit key) header.d=qq.com header.i=@qq.com header.b=jjPVkooN; arc=none smtp.client-ip=203.205.221.242 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=qq.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=qq.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=qq.com header.i=@qq.com header.b="jjPVkooN" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qq.com; s=s201512; t=1787059179; bh=EnE8Ac80Xeo0YvrWYWO15hMp/yHf4W3nmKkYtcbFD/c=; h=From:Subject:To:Cc:Date; b=jjPVkooNK06YQy0y7BPHfvu8U0ne6XfYE+jqIRj6tizpgfTTU/ZT/a6bNXCOlP/26 WCwnOQMvydCaL2hbo7+By1eZ5t1EMEo0ffDH6rUvUIhdwtGY4ENVw6WUTtdxSwaiZp ocawPQtu/8j6jlMfbRifFgA/T0q/swL3V5vn3lBs= Received: from [127.0.1.1] ([5.195.0.150]) by newxmesmtplogicsvrsza63-0.qq.com (NewEsmtp) with SMTP id 1721C6D8; Tue, 18 Aug 2026 21:05:50 +0800 X-QQ-mid: xmsmtpt1787059086trq17d73e Message-ID: X-QQ-XMAILINFO: MRMtjO3A6C9X2uROP3QJmhslvlrFV3Golkzi8hDQC5JSUnIFRZvFEtlTKN0uff fwGAX66sk+/bbEuY9nihtoVDIwg/tDaJhEtiWgo+tSBG+OQPpDINDA8xgdwMSPyi6IA1K62XAVU7 5xNZgeowHG7ThZFJlOyPoaBa3qgzq2Qm48/Kz0o1U3Eis6RK3QBuPBHOrP68dg2l6PK7Vyuh021u wcBTspGMIhDmzVDzhqbfx469+hmQiBMqRiiDCYVTlExQYcVTDyV9R8ebv8d8mCIY01Jj7k+JXRTp +ttl9bZmugcRhiPtN3D6p1Pk0xTbry9uMSOdIt31lqhr1m8WJnqyNpuyxhXA7/cTmXYfszuRZaVe feArIgP43WyxO404ADfM3pZE26jnyw4pDngRDGw3unu/xz0tgj8q/gXPESoUwbCnlKb664Ah/j9a kravXFZUaEoxMha9kg6P7b1C2o0BU+9gfQkESKUWpXiJvlcwWgvl3oKkcdHZZuB4ac+9JGdTyxrw zrlrpQwg34Gw7UF77PML0WDHCmsi3quKUw2Dvv0RHCgtIi2yLsWJdxlSAI5oAC1quwZdRAXUNF2g nUSIYPgbCzjMHtt0U5vWYmPoWHK6Q0wBmgxhP0wGF37Rd06T9MVdCkSPmaBQjpZiNAM7CiCFOWJx QXYO7At16K/P8nPdM3bUItAtpdSvS7ofWVg32Z7v9zJuBz3YuZDskctld19VyUtsW+KJTaQNfYqi +NWy74azsfeNditfQQBfyN2bP699/AylwVYTdfNehPUCB0dB+zJLsC7j0BtdFa4fEeqQd3n5mXIf fp8GsZypT2YuDk0o/KrIJaOMelzIlFQ3gqgVfflualv5SnfiSbjdVYRHJLW6/VtllKz1TDl3STBy vvFPgyHZwvjmq7aK7j71+P3etgjbmeVU9EYq0e0/55WLZpY29507Qh31yDXvbLbSol9JqwG3/JPZ EGSFManxfBoxt8zG/grL++6czZRFHB9ygnYqXSdFfzzYw8sSIylyf57PEdsvsfmp3vWJp5LbmmK3 bn+ddeMARkl17idbqgEtw8cUlHOpY= X-QQ-XMRINFO: M/715EihBoGS47X28/vv4NpnfpeBLnr4Qg== From: Jiawen Liu <1298662399@qq.com> Subject: [PATCH] memory: exynos5422-dmc: handle clock enable failures To: Lukasz Luba , Krzysztof Kozlowski , Peter Griffin , linux-pm@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Alim Akhtar Date: Tue, 18 Aug 2026 17:19:36 +0400 X-OQ-MSGID: <178705917686.291840.2383875087169763088@qq.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Check clock-enable failures during probe. If a later clock cannot be enabled, unwind clocks already enabled on that path before returning the error. Signed-off-by: jiawen <1298662399@qq.com> --- diff --git a/drivers/memory/samsung/exynos5422-dmc.c b/drivers/memory/samsu= ng/exynos5422-dmc.c --- a/drivers/memory/samsung/exynos5422-dmc.c +++ b/drivers/memory/samsung/exynos5422-dmc.c @@ -1297,8 +1297,15 @@ if (ret) return ret; =20 - clk_prepare_enable(dmc->fout_bpll); - clk_prepare_enable(dmc->mout_bpll); + ret =3D clk_prepare_enable(dmc->fout_bpll); + if (ret) + return ret; + + ret =3D clk_prepare_enable(dmc->mout_bpll); + if (ret) { + clk_disable_unprepare(dmc->fout_bpll); + return ret; + } =20 /* * Some bootloaders do not set clock routes correctly.