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From: Marco Felsch <m.felsch@pengutronix.de>
To: barebox@lists.infradead.org
Subject: [PATCH 07/18] regulator: test of_regulator_register input before accessing it
Date: Mon, 28 Sep 2020 17:50:30 +0200	[thread overview]
Message-ID: <20200928155041.32649-8-m.felsch@pengutronix.de> (raw)
In-Reply-To: <20200928155041.32649-1-m.felsch@pengutronix.de>

Add simple parameter check to avoid possible NULL pointer dereferences.

Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
---
 drivers/regulator/core.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index a767e383fb..6ea21a4609 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -163,6 +163,9 @@ int of_regulator_register(struct regulator_dev *rd, struct device_node *node)
 	struct regulator_internal *ri;
 	const char *name;
 
+	if (!rd || !node)
+		return -EINVAL;
+
 	rd->boot_on = of_property_read_bool(node, "regulator-boot-on");
 
 	name = of_get_property(node, "regulator-name", NULL);
-- 
2.20.1


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  parent reply	other threads:[~2020-09-28 15:51 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-28 15:50 [PATCH 00/18] Barebox Deep-Probe Marco Felsch
2020-09-28 15:50 ` [PATCH 01/18] video: ssd1307fb: fix VBAT supply id Marco Felsch
2020-09-28 15:58   ` Ahmad Fatoum
2020-09-28 15:50 ` [PATCH 02/18] ARM: boards: mx6-sabrelite: [cosmetic] make use of IMX_GPIO_NR Marco Felsch
2020-09-28 16:00   ` Ahmad Fatoum
2020-09-28 15:50 ` [PATCH 03/18] drivers: gpio: treewide: [cosmetic] use register_driver_macros Marco Felsch
2020-09-28 16:04   ` Ahmad Fatoum
2020-09-29  8:20   ` Sascha Hauer
2020-09-28 15:50 ` [PATCH 04/18] ARM: mx6-sabrelite: remove obsolete sabrelite_mem_init() Marco Felsch
2020-09-28 16:07   ` Ahmad Fatoum
2020-09-28 15:50 ` [PATCH 05/18] spi: core: don't ignore register_device failures Marco Felsch
2020-09-28 15:50 ` [PATCH 06/18] regulator: improve of_regulator_register error handling Marco Felsch
2020-09-28 15:50 ` Marco Felsch [this message]
2020-09-28 16:11   ` [PATCH 07/18] regulator: test of_regulator_register input before accessing it Ahmad Fatoum
2020-09-28 15:50 ` [PATCH 08/18] regulator: stpmic1: fix registering missed regulators Marco Felsch
2020-09-28 15:50 ` [PATCH 09/18] regulator: add device reference to regulator_dev Marco Felsch
2020-09-28 15:50 ` [PATCH 10/18] regulator: treewide: drop local device_d reference Marco Felsch
2020-09-28 15:50 ` [PATCH 11/18] of: platform: fix of_amba_device_create stub return value Marco Felsch
2020-09-28 15:50 ` [PATCH 12/18] of: base: move memory init from DT to initcall Marco Felsch
2020-09-28 15:50 ` [PATCH 13/18] of: base: move clock init from of_probe() to barebox_register_of() Marco Felsch
2020-09-28 15:50 ` [PATCH 14/18] initcall: add of_populate_initcall Marco Felsch
2020-09-28 15:50 ` [PATCH 15/18] common: add initial barebox deep-probe support Marco Felsch
2020-09-28 16:53   ` Ahmad Fatoum
2020-09-29 15:55     ` Marco Felsch
2020-09-28 15:50 ` [PATCH 16/18] ARM: i.MX: esdctl: add " Marco Felsch
2020-09-28 15:50 ` [PATCH 17/18] ARM: stm32mp: ddrctrl: " Marco Felsch
2020-09-28 15:50 ` [PATCH 18/18] ARM: boards: mx6-sabrelite: " Marco Felsch
2020-09-28 16:58   ` Ahmad Fatoum
2020-09-29  8:30 ` [PATCH 00/18] Barebox Deep-Probe Sascha Hauer

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