forked from Minki/linux
Char: mxser_new, fix recursive locking
Signed-off-by: Jan "Yenya" Kasprzak <kas@fi.muni.cz> Acked-by: Jiri Slaby <jirislaby@gmail.com> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -2230,7 +2230,14 @@ end_intr:
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port->mon_data.rxcnt += cnt;
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port->mon_data.up_rxcnt += cnt;
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/*
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* We are called from an interrupt context with &port->slock
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* being held. Drop it temporarily in order to prevent
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* recursive locking.
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*/
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spin_unlock(&port->slock);
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tty_flip_buffer_push(tty);
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spin_lock(&port->slock);
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}
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static void mxser_transmit_chars(struct mxser_port *port)
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