remove another invalid skip of locking in ungetwc

diff --git a/src/stdio/ungetwc.c b/src/stdio/ungetwc.c
index 0a4cd7a1f2f01d94b35ec04b7353aa360b7429bf..394f92ac9cba89474f74c00137a13cd53210e4b8 100644 (file)
--- a/src/stdio/ungetwc.c
+++ b/src/stdio/ungetwc.c
@@ -9,14 +9,12 @@ wint_t ungetwc(wint_t c, FILE *f)
        unsigned char mbc[MB_LEN_MAX];
        int l=1;
 
-       if (c == WEOF) return c;
-
        FLOCK(f);
 
        f->mode |= f->mode+1;
 
        if (!f->rpos) __toread(f);
-       if (!f->rpos || f->rpos < f->buf - UNGET + l ||
+       if (!f->rpos || f->rpos < f->buf - UNGET + l || c == WEOF ||
            (!isascii(c) && (l = wctomb((void *)mbc, c)) < 0)) {
                FUNLOCK(f);
                return WEOF;