fix invalid free of duplocale object when malloc has been replaced

[musl] / src / unistd / ttyname_r.c

diff --git a/src/unistd/ttyname_r.c b/src/unistd/ttyname_r.c
index 33aa4ae..82acb75 100644 (file)
--- a/src/unistd/ttyname_r.c
+++ b/src/unistd/ttyname_r.c
@@ -1,8 +1,7 @@
 #include <unistd.h>
 #include <errno.h>
 #include <sys/stat.h>
-
-void __procfdname(char *, unsigned);
+#include "syscall.h"
 
 int ttyname_r(int fd, char *name, size_t size)
 {
@@ -10,7 +9,7 @@ int ttyname_r(int fd, char *name, size_t size)
        char procname[sizeof "/proc/self/fd/" + 3*sizeof(int) + 2];
        ssize_t l;
 
-       if (!isatty(fd)) return ENOTTY;
+       if (!isatty(fd)) return errno;
 
        __procfdname(procname, fd);
        l = readlink(procname, name, size);