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USB: ftdi_sio: unlock_kernel() on error in set_serial_info()

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There was one error path where unlock_kernel() wasn't called.

This was found with a code checker (http://repo.or.cz/w/smatch.git/)
Compile tested only, sorry.

Signed-off-by: Dan Carpenter <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Dan Carpenter 2009-02-03 11:11:38 +03:00 • committed by Greg Kroah-Hartman
commit 64905b4809
1 changed files with 3 additions and 1 deletions
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4
drivers/usb/serial/ftdi_sio.c
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@ -1065,8 +1065,10 @@ static int set_serial_info(struct tty_struct *tty,
if (!capable(CAP_SYS_ADMIN)) {
if (((new_serial.flags & ~ASYNC_USR_MASK) !=
(priv->flags & ~ASYNC_USR_MASK)))
(priv->flags & ~ASYNC_USR_MASK))) {
unlock_kernel();
return -EPERM;
}
priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
(new_serial.flags & ASYNC_USR_MASK));
priv->custom_divisor = new_serial.custom_divisor;