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Diffstat (limited to 'sysdeps/unix/grantpt.c')
-rw-r--r--sysdeps/unix/grantpt.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/sysdeps/unix/grantpt.c b/sysdeps/unix/grantpt.c
index 5f27ce91e3..98d601cf67 100644
--- a/sysdeps/unix/grantpt.c
+++ b/sysdeps/unix/grantpt.c
@@ -55,7 +55,8 @@ pts_name (int fd, char **pts, size_t buf_len)
 		/* ptsname_r returns with ENOTTY to indicate
 		   a descriptor not referring to a pty master.
 		   For this condition, grantpt must return EINVAL.  */
-		errno = EINVAL;
+		rv = EINVAL;
+	      errno = rv;	/* Not necessarily set by __ptsname_r.  */
 	      break;
 	    }