[PATCH] selftests: prctl: Fix resource leaks

[liujing]

After using the fopen function successfully, you need to call
fclose to close the file before finally returning.

Signed-off-by: liujing <liuj...@cmss.chinamobile.com>

diff --git a/tools/testing/selftests/prctl/set-process-name.c 
b/tools/testing/selftests/prctl/set-process-name.c
index 562f707ba771..7be7afff0cd2 100644
--- a/tools/testing/selftests/prctl/set-process-name.c
+++ b/tools/testing/selftests/prctl/set-process-name.c
@@ -66,9 +66,12 @@ int check_name(void)
                return -EIO;
 
        fscanf(fptr, "%s", output);
-       if (ferror(fptr))
+       if (ferror(fptr)) {
+               fclose(fptr);
                return -EIO;
+       }
 
+       fclose(fptr);
        int res = prctl(PR_GET_NAME, name, NULL, NULL, NULL);
 
        if (res < 0)
-- 
2.27.0