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char: make some qemu_chr_fe skip if no driver

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In most cases, front ends do not care about the side effect of
CharBackend, so we can simply skip the checks and call the qemu_chr_fe
functions even without associated CharDriver.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022095318.17775-20-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Marc-André Lureau 2016-10-22 12:52:59 +03:00 • committed by Paolo Bonzini
parent c39860e6dc
commit fa394ed625
22 changed files with 156 additions and 190 deletions
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6
hw/char/sclpconsole-lm.c
View file

@ -312,10 +312,8 @@ static int console_init(SCLPEvent *event)
}
console_available = true;
if (scon->chr.chr) {
qemu_chr_fe_set_handlers(&scon->chr, chr_can_read,
chr_read, NULL, scon, NULL);
}
qemu_chr_fe_set_handlers(&scon->chr, chr_can_read,
chr_read, NULL, scon, NULL);
return 0;
}