Re: [PATCH] selftests/efivarfs: create-read: fix a resource leak

From: Shuah Khan
Date: Tue Oct 17 2023 - 11:47:01 EST


On 10/16/23 20:33, zhujun2 wrote:
The opened file should be closed in main(), otherwise resource
leak will occur


Did you find this by code reading or by any other means. Please
add how you found the problem to the change log.

Signed-off-by: zhujun2 <zhujun2@xxxxxxxxxxxxxxxxxxxx>
---
tools/testing/selftests/efivarfs/create-read.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/tools/testing/selftests/efivarfs/create-read.c b/tools/testing/selftests/efivarfs/create-read.c
index 9674a1939..6812104a5 100644
--- a/tools/testing/selftests/efivarfs/create-read.c
+++ b/tools/testing/selftests/efivarfs/create-read.c
@@ -32,8 +32,11 @@ int main(int argc, char **argv)
rc = read(fd, buf, sizeof(buf));
if (rc != 0) {
fprintf(stderr, "Reading a new var should return EOF\n");
+ close(fd);
return EXIT_FAILURE;
}
+ close(fd);
+

No need for this extra line here.

return EXIT_SUCCESS;
}

thanks,
-- Shuah