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authorColin Leitner <colin.leitner@googlemail.com>2013-11-04 19:40:43 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-12-02 21:52:57 -0800
commita313249937820f8b1996133fc285efbd6aad2c5b (patch)
treedaf7b0057120d420e260a6bcb9e8b415d85f2492 /drivers/usb/serial/pl2303.c
parent8704211f65a2106ba01b6ac9727cdaf9ca11594c (diff)
USB: pl2303: fixed handling of CS5 setting
This patch fixes the CS5 setting on the PL2303 USB-to-serial devices. CS5 has a value of 0 and the CSIZE setting has been skipped altogether by the enclosing if. Tested on 3.11.6 and the scope shows the correct output after the fix has been applied. Tagged to be added to stable, because it fixes a user visible driver bug and is simple enough to backport easily. Signed-off-by: Colin Leitner <colin.leitner@gmail.com> Signed-off-by: Johan Hovold <jhovold@gmail.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/serial/pl2303.c')
-rw-r--r--drivers/usb/serial/pl2303.c30
1 files changed, 14 insertions, 16 deletions
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index 1e6de4cd079d..1e3318dfa1cb 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -361,23 +361,21 @@ static void pl2303_set_termios(struct tty_struct *tty,
0, 0, buf, 7, 100);
dev_dbg(&port->dev, "0xa1:0x21:0:0 %d - %7ph\n", i, buf);
- if (C_CSIZE(tty)) {
- switch (C_CSIZE(tty)) {
- case CS5:
- buf[6] = 5;
- break;
- case CS6:
- buf[6] = 6;
- break;
- case CS7:
- buf[6] = 7;
- break;
- default:
- case CS8:
- buf[6] = 8;
- }
- dev_dbg(&port->dev, "data bits = %d\n", buf[6]);
+ switch (C_CSIZE(tty)) {
+ case CS5:
+ buf[6] = 5;
+ break;
+ case CS6:
+ buf[6] = 6;
+ break;
+ case CS7:
+ buf[6] = 7;
+ break;
+ default:
+ case CS8:
+ buf[6] = 8;
}
+ dev_dbg(&port->dev, "data bits = %d\n", buf[6]);
/* For reference buf[0]:buf[3] baud rate value */
pl2303_encode_baudrate(tty, port, &buf[0]);