| commit | 666265036fec3fd3eed2d55ae828c915a084a1d6 | |
| author | Roman Kagan <rvkagan@yandex-team.ru> | |
| Thu, 11 Nov 2021 15:33:47 +0000 (11 18:33 +0300) | ||
| committer | Michael S. Tsirkin <mst@redhat.com> | |
| Fri, 7 Jan 2022 10:19:55 +0000 (7 05:19 -0500) | ||
| tree | 88857b1e14dd5002a5def6dcbe67c129f3b0047c | treesnapshot (tar.gz zip) |
| parent | e87975051ee6071dec12d318e45a28d4770c2dd0 | commitdiff |
chardev/char-socket: tcp_chr_sync_read: don't clobber errno
After the return from tcp_chr_recv, tcp_chr_sync_read calls into a
function which eventually makes a system call and may clobber errno.
Make a copy of errno right after tcp_chr_recv and restore the errno on
return from tcp_chr_sync_read.
Signed-off-by: Roman Kagan <rvkagan@yandex-team.ru>
Message-Id: <20211111153354.18807-4-rvkagan@yandex-team.ru>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
After the return from tcp_chr_recv, tcp_chr_sync_read calls into a
function which eventually makes a system call and may clobber errno.
Make a copy of errno right after tcp_chr_recv and restore the errno on
return from tcp_chr_sync_read.
Signed-off-by: Roman Kagan <rvkagan@yandex-team.ru>
Message-Id: <20211111153354.18807-4-rvkagan@yandex-team.ru>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
| chardev/char-socket.c | diffblobblamehistory |