1 files changed, 6 insertions, 0 deletions

diff --git a/lib/libc/stdio/vfwprintf.c b/lib/libc/stdio/vfwprintf.c
index b75c504b1e72..9a5381d54b9b 100644
--- a/lib/libc/stdio/vfwprintf.c
+++ b/lib/libc/stdio/vfwprintf.c
@@ -444,6 +444,7 @@ __vfwprintf(FILE *fp, locale_t locale, const wchar_t *fmt0, va_list ap)
 	int nextarg;		/* 1-based argument index */
 	va_list orgap;		/* original argument pointer */
 	wchar_t *convbuf;	/* multibyte to wide conversion result */
+	int savserr;
 
 	static const char xdigs_lower[16] = "0123456789abcdef";
 	static const char xdigs_upper[16] = "0123456789ABCDEF";
@@ -536,6 +537,9 @@ __vfwprintf(FILE *fp, locale_t locale, const wchar_t *fmt0, va_list ap)
 		return (EOF);
 	}
 
+	savserr = fp->_flags & __SERR;
+	fp->_flags &= ~__SERR;
+
 	convbuf = NULL;
 	fmt = (wchar_t *)fmt0;
 	argtable = NULL;
@@ -1096,6 +1100,8 @@ error:
 		free(convbuf);
 	if (__sferror(fp))
 		ret = EOF;
+	else
+		fp->_flags |= savserr;
 	if ((argtable != NULL) && (argtable != statargtable))
 		free (argtable);
 	return (ret);