diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-03-26 11:17:39 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-03-26 11:17:39 -0700 |
| commit | 61a091827e273650b39eb87c799a6d260913fa0b (patch) | |
| tree | 19f0a4840fc90da6ca3787ee7efacb5bb0c6c7a2 /drivers/usb/serial/ftdi_sio.c | |
| parent | 0c93ea4064a209cdc36de8a9a3003d43d08f46f7 (diff) | |
| parent | fd8345f8dea93691b0ceba55146088d8c05415f6 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (97 commits)
USB: qcserial: add device id for HP devices
USB: isp1760: Add a delay before reading the SKIPMAP registers in isp1760-hcd.c
USB: allow malformed LANGID descriptors
USB: pxa27x_udc: typo fixes and code cleanups
USB: gadget: gadget zero uses new suspend/resume hooks
USB: gadget: composite device-level suspend/resume hooks
USB: r8a66597-hcd: suspend/resume support
USB: more u32 conversion after transfer_buffer_length and actual_length
USB: Fix cp2101 USB serial device driver termios functions for console use
USB: CP2101 New Device ID
USB: ipaq: handle 4 endpoint devices
USB: S3C: Move usb-control.h to platform include
USB: ohci-hcd: Add ARCH_S3C24XX to the ohci-s3c2410.c glue
USB: pedantic: spelling correction in comment for ch9.h
USB: host: fix sparse warning: Using plain integer as NULL pointer
USB: ohci-s3c2410: fix name of bus clock
USB: ohci-s3c2410: remove <mach/hardware.h> include
USB: serial: rename cp2101 driver to cp210x
USB: CP2101 Reduce Error Logging
USB: CP2101 Support AN205 baud rates
...
Diffstat (limited to 'drivers/usb/serial/ftdi_sio.c')
| -rw-r--r-- | drivers/usb/serial/ftdi_sio.c | 29 |
1 files changed, 10 insertions, 19 deletions
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index ae84c326a540..dcc87aaa8628 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -1938,18 +1938,16 @@ static void ftdi_process_read(struct work_struct *work) /* Compare new line status to the old one, signal if different/ N.B. packet may be processed more than once, but differences are only processed once. */ - if (priv != NULL) { - char new_status = data[packet_offset + 0] & - FTDI_STATUS_B0_MASK; - if (new_status != priv->prev_status) { - priv->diff_status |= - new_status ^ priv->prev_status; - wake_up_interruptible(&priv->delta_msr_wait); - priv->prev_status = new_status; - } + char new_status = data[packet_offset + 0] & + FTDI_STATUS_B0_MASK; + if (new_status != priv->prev_status) { + priv->diff_status |= + new_status ^ priv->prev_status; + wake_up_interruptible(&priv->delta_msr_wait); + priv->prev_status = new_status; } - length = min(PKTSZ, urb->actual_length-packet_offset)-2; + length = min_t(u32, PKTSZ, urb->actual_length-packet_offset)-2; if (length < 0) { dev_err(&port->dev, "%s - bad packet length: %d\n", __func__, length+2); @@ -2294,11 +2292,8 @@ static int ftdi_tiocmget(struct tty_struct *tty, struct file *file) FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE, 0, 0, buf, 1, WDR_TIMEOUT); - if (ret < 0) { - dbg("%s Could not get modem status of device - err: %d", __func__, - ret); + if (ret < 0) return ret; - } break; case FT8U232AM: case FT232BM: @@ -2313,15 +2308,11 @@ static int ftdi_tiocmget(struct tty_struct *tty, struct file *file) FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE, 0, priv->interface, buf, 2, WDR_TIMEOUT); - if (ret < 0) { - dbg("%s Could not get modem status of device - err: %d", __func__, - ret); + if (ret < 0) return ret; - } break; default: return -EFAULT; - break; } return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) | |