mxser: switch to put_char being int
Signed-off-by: Alan Cox <alan@redhat.com> Cc: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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1 changed files with 4 additions and 3 deletions
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@ -1091,16 +1091,16 @@ static int mxser_write(struct tty_struct *tty, const unsigned char *buf, int cou
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return total;
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}
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static void mxser_put_char(struct tty_struct *tty, unsigned char ch)
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static int mxser_put_char(struct tty_struct *tty, unsigned char ch)
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{
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struct mxser_port *info = tty->driver_data;
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unsigned long flags;
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if (!info->xmit_buf)
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return;
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return 0;
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if (info->xmit_cnt >= SERIAL_XMIT_SIZE - 1)
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return;
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return 0;
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spin_lock_irqsave(&info->slock, flags);
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info->xmit_buf[info->xmit_head++] = ch;
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@ -1118,6 +1118,7 @@ static void mxser_put_char(struct tty_struct *tty, unsigned char ch)
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spin_unlock_irqrestore(&info->slock, flags);
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}
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}
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return 1;
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}
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