diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-02 10:25:51 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-02 10:26:01 -0800 |
| commit | d2fde28ce793c09c1ea36d981cb6765174fd1eea (patch) | |
| tree | d1922f6572702374900dace5dcbb9d794fecc522 /drivers/usb/serial/mos7840.c | |
| parent | 609e5b71d0eca163df017ecfcf917b149875e744 (diff) | |
| parent | e65f0f8271b1b0452334e5da37fd35413a000de4 (diff) | |
Merge branch 'tty-updates' from Alan
* tty-updates: (75 commits)
serial_8250: support for Sealevel Systems Model 7803 COMM+8
hso maintainers update patch
hso modem detect fix patch against Alan Cox'es tty tree
tty: Fix an ircomm warning and note another bug
drivers/char/cyclades.c: cy_pci_probe: fix error path
Serial: UART driver changes for Cavium OCTEON.
Serial: Allow port type to be specified when calling serial8250_register_port.
8250: Serial driver changes to support future Cavium OCTEON serial patches.
8250: Don't clobber spinlocks.
fix for tty-serial-move-port
tty: We want the port object to be persistent
__FUNCTION__ is gcc-specific, use __func__
serial: RS485 ioctl structure uses __u32 include linux/types.h
tty: Drop the lock_kernel in the private ioctl hook
synclink_cs: Convert to tty_port
tty: use port methods for the rocket driver
tty: kref the rocket driver
tty: make rocketport use standard port->flags
tty: Redo the rocket driver locking
tty: Make epca use the port helpers
...
Diffstat (limited to 'drivers/usb/serial/mos7840.c')
| -rw-r--r-- | drivers/usb/serial/mos7840.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index fda4a6421c44..96a8c7713212 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -1343,6 +1343,7 @@ static void mos7840_break(struct tty_struct *tty, int break_state) else data = mos7840_port->shadowLCR & ~LCR_SET_BREAK; + /* FIXME: no locking on shadowLCR anywhere in driver */ mos7840_port->shadowLCR = data; dbg("mcs7840_break mos7840_port->shadowLCR is %x\n", mos7840_port->shadowLCR); @@ -2214,10 +2215,12 @@ static int mos7840_set_modem_info(struct moschip_port *mos7840_port, break; } + lock_kernel(); mos7840_port->shadowMCR = mcr; Data = mos7840_port->shadowMCR; status = mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER, Data); + unlock_kernel(); if (status < 0) { dbg("setting MODEM_CONTROL_REGISTER Failed\n"); return -1; |