make endmntent function handle null argument

[musl] / src / misc / mntent.c

diff --git a/src/misc/mntent.c b/src/misc/mntent.c
index 3eafba5..a16d652 100644 (file)
--- a/src/misc/mntent.c
+++ b/src/misc/mntent.c
@@ -10,7 +10,7 @@ FILE *setmntent(const char *name, const char *mode)
 
 int endmntent(FILE *f)
 {
-       fclose(f);
+       if (f) fclose(f);
        return 1;
 }