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From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Ahmad Fatoum <a.fatoum@pengutronix.de>
Subject: [PATCH 6/9] pinctrl: Rockchip: abort probe on lack of aliases
Date: Mon,  8 Nov 2021 08:52:06 +0100	[thread overview]
Message-ID: <20211108075209.2366770-6-a.fatoum@pengutronix.de> (raw)
In-Reply-To: <20211108075209.2366770-1-a.fatoum@pengutronix.de>

The driver depends on the existence of aliases and will read
out-of-bounds if they are missing for a node. Make failure
graceful by aborting before that happens.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
 drivers/pinctrl/pinctrl-rockchip.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index 4f0951bb289a..1fdb9a913ad3 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -334,6 +334,9 @@ static int rockchip_gpio_probe(struct device_d *dev)
 	int ret, bankno;
 
 	bankno = of_alias_get_id(dev->device_node, "gpio");
+	if (bankno < 0)
+		return bankno;
+
 	bank = &ctrl->pin_banks[bankno];
 	gpio = &bank->bgpio_chip.gc;
 
-- 
2.30.2


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  parent reply	other threads:[~2021-11-08  7:54 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-08  7:52 [PATCH 1/9] fixup! scripts/common: Add write_full() and read_full() Ahmad Fatoum
2021-11-08  7:52 ` [PATCH 2/9] fixup! scripts: Add rk-usb-loader tool Ahmad Fatoum
2021-11-08  7:52 ` [PATCH 3/9] ARM: Rockchip: init: propagate error in init function Ahmad Fatoum
2021-11-08  7:52 ` [PATCH 4/9] ARM: Rockchip: rk3568: make rk3568_lowlevel_init void Ahmad Fatoum
2021-11-08  7:52 ` [PATCH 5/9] ARM64: <asm/barebox-arm-head.h>: mark prologue location Ahmad Fatoum
2021-11-08  8:14   ` Ahmad Fatoum
2021-11-08  7:52 ` Ahmad Fatoum [this message]
2021-11-08  7:52 ` [PATCH 7/9] clk: handle CLK_OF_DECLARE in deep probe Ahmad Fatoum
2021-11-08  7:52 ` [PATCH 8/9] ARM: Rockchip: make rk3568's atf_load_bl31 reusable Ahmad Fatoum
2021-11-08  7:52 ` [PATCH 9/9] ARM: Rockchip: add delimiter between boards and board features Ahmad Fatoum

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