linux-kernel - [PATCH 1/2] regulator: ti-abb: skip optional parameter for ldo-address

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1380288314-24064-2-git-send-email-nm@ti.com>
Date:	Fri, 27 Sep 2013 08:25:13 -0500
From:	Nishanth Menon <nm@...com>
To:	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>
CC:	<linux-kernel@...r.kernel.org>, Nishanth Menon <nm@...com>
Subject: [PATCH 1/2] regulator: ti-abb: skip optional parameter for ldo-address

On platforms like OMAP4460, LDO override is never used. Even though
efuse determines the ABB bias mode to operate at, ABB voltage is
preconfigured in internal efuse registers without the need for
LDO override for bias voltage. So skip optional parameter if
property is not present.

Signed-off-by: Nishanth Menon <nm@...com>
---
 drivers/regulator/ti-abb-regulator.c |    5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/regulator/ti-abb-regulator.c b/drivers/regulator/ti-abb-regulator.c
index d8e3e12..1e02805 100644
--- a/drivers/regulator/ti-abb-regulator.c
+++ b/drivers/regulator/ti-abb-regulator.c
@@ -765,6 +765,11 @@ static int ti_abb_probe(struct platform_device *pdev)
 
 	pname = "ldo-address";
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, pname);
+	if (!res) {
+		dev_dbg(dev, "Missing '%s' IO resource\n", pname);
+		ret = -ENODEV;
+		goto skip_opt;
+	}
 	abb->ldo_base = devm_ioremap_resource(dev, res);
 	if (IS_ERR(abb->ldo_base)) {
 		ret = PTR_ERR(abb->ldo_base);
-- 
1.7.9.5

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/