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author | Daniel P. Berrange <berrange@redhat.com> | 2016-09-06 14:56:03 +0100 |
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committer | Paolo Bonzini <pbonzini@redhat.com> | 2016-09-13 19:09:42 +0200 |
commit | 7983e829336f68b6df6952dd4b03493b1486fcf5 (patch) | |
tree | c33805ada081b4e50c17c6deab795545f5384c63 /backends | |
parent | b72981b910097b31f4d0b9c111a2d2cfd9ee585b (diff) |
sclpconsolelm: remove bogus check for -EAGAIN
The write_console_data() method in sclpconsole-lm.c checks
whether the return value of qemu_chr_fe_write() has the
value of -EAGAIN and if so then increments the buffer offset
by the value of EAGAIN. Fortunately qemu_chr_fe_write() will
never return EAGAIN directly, rather it returns -1 with
errno set to EAGAIN, so this broken code path was not
reachable. The behaviour on EAGAIN was stil bad though,
causing the write_console_data() to busy_wait repeatedly
calling qemu_chr_fe_write() with no sleep between iters.
Just remove all this loop logic and replace with a call
to qemu_chr_fe_write_all().
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <1473170165-540-3-git-send-email-berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'backends')
0 files changed, 0 insertions, 0 deletions