[PATCH evemu] evemu-record.c: fix memory access in error path

[Martin Kepplinger]

In case the output file could not have been opened, it is accessed anyways
although it's zero, resulting in a segmentation fault.

So let's free it in the out-path only if allocated before.

Signed-off-by: Martin Kepplinger <martink at posteo.de>
---

Hi Peter,

Thanks for pointing that out. You're right, only fclose(NULL) is a
problem here. Tested.

thanks,

                         martin


 tools/evemu-record.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/evemu-record.c b/tools/evemu-record.c
index 56572bb..40693ff 100644
--- a/tools/evemu-record.c
+++ b/tools/evemu-record.c
@@ -339,7 +339,7 @@ int main(int argc, char *argv[])
 out:
 	free(device);
 	close(fd);
-	if (output != stdout) {
+	if (output && output != stdout) {
 		fclose(output);
 		output = stdout;
 	}
-- 
2.11.0