linux-kernel - [PATCH AUTOSEL 4.19 14/16] tools/iio: Add memory allocation failure check for trigger

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Message-ID: <20241004183150.3676355-14-sashal@kernel.org>
Date: Fri,  4 Oct 2024 14:31:41 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Zhu Jun <zhujun2@...s.chinamobile.com>,
	Jonathan Cameron <Jonathan.Cameron@...wei.com>,
	Sasha Levin <sashal@...nel.org>,
	jic23@...nel.org,
	linux-iio@...r.kernel.org
Subject: [PATCH AUTOSEL 4.19 14/16] tools/iio: Add memory allocation failure check for trigger_name

From: Zhu Jun <zhujun2@...s.chinamobile.com>

[ Upstream commit 3c6b818b097dd6932859bcc3d6722a74ec5931c1 ]

Added a check to handle memory allocation failure for `trigger_name`
and return `-ENOMEM`.

Signed-off-by: Zhu Jun <zhujun2@...s.chinamobile.com>
Link: https://patch.msgid.link/20240828093129.3040-1-zhujun2@cmss.chinamobile.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 tools/iio/iio_generic_buffer.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/iio/iio_generic_buffer.c b/tools/iio/iio_generic_buffer.c
index ca9f33fa51c9f..e8cf3dc8de72c 100644
--- a/tools/iio/iio_generic_buffer.c
+++ b/tools/iio/iio_generic_buffer.c
@@ -483,6 +483,10 @@ int main(int argc, char **argv)
 			return -ENOMEM;
 		}
 		trigger_name = malloc(IIO_MAX_NAME_LENGTH);
+		if (!trigger_name) {
+			ret = -ENOMEM;
+			goto error;
+		}
 		ret = read_sysfs_string("name", trig_dev_name, trigger_name);
 		free(trig_dev_name);
 		if (ret < 0) {
-- 
2.43.0