linux-kernel - [PATCH v2] ni_routing: Check when the file could not be opened

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Message-ID: <20240906121009.73799-1-RuffaloLavoisier@gmail.com>
Date: Fri,  6 Sep 2024 21:10:08 +0900
From: Ruffalo Lavoisier <ruffalolavoisier@...il.com>
To: Ian Abbott <abbotti@....co.uk>,
	H Hartley Sweeten <hsweeten@...ionengravers.com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Ruffalo Lavoisier <RuffaloLavoisier@...il.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2] ni_routing: Check when the file could not be opened

Signed-off-by: Ruffalo Lavoisier <RuffaloLavoisier@...il.com>
---
 drivers/comedi/drivers/ni_routing/tools/convert_c_to_py.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/comedi/drivers/ni_routing/tools/convert_c_to_py.c b/drivers/comedi/drivers/ni_routing/tools/convert_c_to_py.c
index d55521b5bdcb..892a66b2cea6 100644
--- a/drivers/comedi/drivers/ni_routing/tools/convert_c_to_py.c
+++ b/drivers/comedi/drivers/ni_routing/tools/convert_c_to_py.c
@@ -140,6 +140,11 @@ int main(void)
 {
 	FILE *fp = fopen("ni_values.py", "w");
 
+	if (fp == NULL) {
+		fprintf(stderr, "Could not open file!");
+		return -1;
+	}
+
 	/* write route register values */
 	fprintf(fp, "ni_route_values = {\n");
 	for (int i = 0; ni_all_route_values[i]; ++i)
-- 
2.43.0