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From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: barebox@lists.infradead.org
Cc: mfe@pengutronix.de, Jules Maselbas <jmaselbas@kalray.eu>,
	Ahmad Fatoum <a.fatoum@pengutronix.de>
Subject: [PATCH v2 05/10] gpiolib: fix missing error check while query gpio-line-names
Date: Wed, 14 Jun 2023 12:07:42 +0200	[thread overview]
Message-ID: <20230614100747.3368109-6-a.fatoum@pengutronix.de> (raw)
In-Reply-To: <20230614100747.3368109-1-a.fatoum@pengutronix.de>

From: Marco Felsch <m.felsch@pengutronix.de>

Don't ignore the possible error return code of
of_property_read_string_array().

Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
v1 -> v2:
  - drop error message as we shouldn't hit this issue
    anyway when of_property_count_strings called before
    succeeds.
---
 drivers/gpio/gpiolib.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index f05e2ac7356a..275fb7324331 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -526,8 +526,13 @@ static int of_gpiochip_scan_hogs(struct gpio_chip *chip)
 	if (count > 0) {
 		const char **names = xzalloc(count * sizeof(char *));
 
-		of_property_read_string_array(chip->dev->of_node,
-					      "gpio-line-names", names, count);
+		ret = of_property_read_string_array(chip->dev->of_node,
+						    "gpio-line-names", names,
+						    count);
+		if (ret < 0) {
+			kfree(names);
+			return ret;
+		}
 
 		/*
 		 * Since property 'gpio-line-names' cannot contains gaps, we
-- 
2.39.2




  parent reply	other threads:[~2023-06-14 10:09 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-06-14 10:07 [PATCH v2 00/10] Fix gpio-hogs and sync with Linux gpiolib Ahmad Fatoum
2023-06-14 10:07 ` [PATCH v2 01/10] gpiolib: fix gpio-hog functionality Ahmad Fatoum
2023-06-14 10:07 ` [PATCH v2 02/10] gpiolib: simplify for loop break condition Ahmad Fatoum
2023-06-14 10:07 ` [PATCH v2 03/10] gpiolib: rename local gpio-line-names variable Ahmad Fatoum
2023-06-14 10:07 ` [PATCH v2 04/10] gpiolib: fix gpio name memory leak Ahmad Fatoum
2023-06-14 10:07 ` Ahmad Fatoum [this message]
2023-06-14 10:07 ` [PATCH v2 06/10] gpiolib: refactor gpio-line-names parsing Ahmad Fatoum
2023-06-14 10:07 ` [PATCH v2 07/10] gpiolib: introduce of_gpiochip_add to bundle all of functions Ahmad Fatoum
2023-06-14 10:07 ` [PATCH v2 08/10] OF: gpio: sync of_get_named_gpio_flags variable with kernel Ahmad Fatoum
2023-06-14 10:07 ` [PATCH v2 09/10] OF: gpio: call of_node_put in of_get_named_gpio_flags Ahmad Fatoum
2023-06-14 10:07 ` [PATCH v2 10/10] gpiolib: add of_xlate support Ahmad Fatoum
2023-06-16  8:14   ` Sascha Hauer
2023-06-16 12:13     ` Marco Felsch
2023-06-14 14:19 ` [PATCH v2 00/10] Fix gpio-hogs and sync with Linux gpiolib Sascha Hauer

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