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xinhua.Cao 81e34930ce qemu-char: check errno together with ret < 0 
In the tcp_chr_write function, we checked errno,
but errno was not reset before a read or write operation.
Therefore, this check of errno's actions is often
incorrect after EAGAIN has occurred.
we need check errno together with ret < 0.

Signed-off-by: xinhua.Cao <caoxinhua@huawei.com>
Message-Id: <20180704033642.15996-1-caoxinhua@huawei.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Fixes: 9fc53a10f8
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 		2018-07-06 18:39:19 +02:00
..
Makefile.objs buildsys: Move brlapi libs to per object 2017-09-22 10:20:34 +08:00
baum.c baum: Truncate braille device size to 84x1 2017-12-21 09:22:44 +01:00
char-console.c chardev: move headers to include/chardev 2017-06-02 11:33:52 +04:00
char-fd.c chardev: remove context in chr_update_read_handler 2017-09-22 21:07:27 +02:00
char-fe.c chardev/char-fe: Allow NULL chardev in qemu_chr_fe_init() 2018-03-26 14:37:15 +02:00
char-file.c Move include qemu/option.h from qemu-common.h to actual users 2018-02-09 13:52:16 +01:00
char-io.c chardev: move headers to include/chardev 2017-06-02 11:33:52 +04:00
char-mux.c mux: fix ctrl-a b again 2018-06-01 15:13:46 +02:00
char-null.c chardev: move headers to include/chardev 2017-06-02 11:33:52 +04:00
char-parallel.c Move include qemu/option.h from qemu-common.h to actual users 2018-02-09 13:52:16 +01:00
char-pipe.c Move include qemu/option.h from qemu-common.h to actual users 2018-02-09 13:52:16 +01:00
char-pty.c chardev: fix incorrect unref of source 2018-02-05 13:54:39 +01:00
char-ringbuf.c Include less of the generated modular QAPI headers 2018-03-02 13:45:50 -06:00
char-serial.c serial: Open non-block 2018-07-02 15:41:18 +02:00
char-socket.c qemu-char: check errno together with ret < 0 2018-07-06 18:39:19 +02:00
char-stdio.c chardev: don't splatter terminal settings on exit if not previously set 2018-06-28 19:05:30 +02:00
char-udp.c Move include qemu/option.h from qemu-common.h to actual users 2018-02-09 13:52:16 +01:00
char-win-stdio.c chardev: move headers to include/chardev 2017-06-02 11:33:52 +04:00
char-win.c chardev: move headers to include/chardev 2017-06-02 11:33:52 +04:00
char.c * Record-replay lockstep execution, log dumper and fixes (Alex, Pavel) 2018-03-16 11:05:03 +00:00
msmouse.c char: move char devices to chardev/ 2017-06-02 11:33:53 +04:00
spice.c Move include qemu/option.h from qemu-common.h to actual users 2018-02-09 13:52:16 +01:00
testdev.c char: move char devices to chardev/ 2017-06-02 11:33:53 +04:00
trace-events docs: fix broken paths to docs/devel/tracing.txt 2017-07-31 13:12:53 +03:00
wctablet.c misc: remove headers implicitly included 2017-12-18 17:07:02 +03:00