From: Rich Felker <dalias@aerifal.cx>
Date: Tue, 11 Dec 2012 14:38:38 +0000 (-0500)
Subject: fix double errno-decoding in the old-kernel fallback path of pipe2
X-Git-Tag: v0.9.9~61
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=bcc20d2b94e2c6649597d552b94718197be0674f;p=oweals%2Fmusl.git

fix double errno-decoding in the old-kernel fallback path of pipe2

this bug seems to have caused any failure by pipe2 on such systems to
set errno to 1, rather than the proper error code.
---

diff --git a/src/unistd/pipe2.c b/src/unistd/pipe2.c
index 04e0c128..973e8ec3 100644
--- a/src/unistd/pipe2.c
+++ b/src/unistd/pipe2.c
@@ -8,7 +8,7 @@ int pipe2(int fd[2], int flag)
 	if (!flag) return syscall(SYS_pipe, fd);
 	int ret = __syscall(SYS_pipe2, fd, flag);
 	if (ret != -ENOSYS) return __syscall_ret(ret);
-	ret = syscall(SYS_pipe, fd);
+	ret = __syscall(SYS_pipe, fd);
 	if (ret) return __syscall_ret(ret);
 	if (flag & O_CLOEXEC) {
 		fcntl(fd[0], F_SETFD, FD_CLOEXEC);