[PATCH] ni_routing: Check when the file could not be opened

[Ruffalo Lavoisier]

Signed-off-by: Ruffalo Lavoisier <RuffaloLavoisier@xxxxxxxxx>
---
 drivers/comedi/drivers/ni_routing/tools/convert_c_to_py.c | 4 ++++
 1 file changed, 4 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..d0321a7565c5 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
@@ -139,6 +139,10 @@ void device_write(const struct ni_device_routes *dR, FILE *fp)
 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");
-- 
2.43.0