| From | Ben Hutchings <> | Date | Sun, 16 Jun 2013 23:01:38 +0100 | Subject | [31/83] USB: serial: ftdi_sio: Handle the old_termios == 0 case e.g. uart_resume_port() |
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3.2.47-rc1 review patch. If anyone has any objections, please let me know.
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From: Andrew Worsley <amworsley@gmail.com>
commit c515598e0f5769916c31c00392cc2bfe6af74e55 upstream.
Handle null old_termios in ftdi_set_termios() calls from uart_resume_port().
Signed-off-by: Andrew Worsley <amworsley@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> --- drivers/usb/serial/ftdi_sio.c | 4 ++++ 1 file changed, 4 insertions(+)
--- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -2169,6 +2169,9 @@ static void ftdi_set_termios(struct tty_ cflag = termios->c_cflag; + if (old_termios == 0) + goto no_skip; + if (old_termios->c_cflag == termios->c_cflag && old_termios->c_ispeed == termios->c_ispeed && old_termios->c_ospeed == termios->c_ospeed) @@ -2182,6 +2185,7 @@ static void ftdi_set_termios(struct tty_ (termios->c_cflag & (CSIZE|PARODD|PARENB|CMSPAR|CSTOPB))) goto no_data_parity_stop_changes; +no_skip: /* Set number of data bits, parity, stop bits */ urb_value = 0;
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