diff options
Diffstat (limited to 'drivers/usb/misc/ftdi-elan.c')
| -rw-r--r-- | drivers/usb/misc/ftdi-elan.c | 39 |
1 files changed, 12 insertions, 27 deletions
diff --git a/drivers/usb/misc/ftdi-elan.c b/drivers/usb/misc/ftdi-elan.c index b88a094..9b591b8 100644 --- a/drivers/usb/misc/ftdi-elan.c +++ b/drivers/usb/misc/ftdi-elan.c @@ -35,7 +35,6 @@ * via an ELAN U132 adapter. * */ -#include <linux/config.h> #include <linux/kernel.h> #include <linux/errno.h> #include <linux/init.h> @@ -514,8 +513,6 @@ static void ftdi_elan_respond_work(void *data) ftdi->disconnected += 1; } else if (retval == -ENODEV) { ftdi->disconnected += 1; - } else if (retval == -ENODEV) { - ftdi->disconnected += 1; } else if (retval == -EILSEQ) { ftdi->disconnected += 1; } else { @@ -759,7 +756,7 @@ static ssize_t ftdi_elan_read(struct file *file, char __user *buffer, return bytes_read; } -static void ftdi_elan_write_bulk_callback(struct urb *urb, struct pt_regs *regs) +static void ftdi_elan_write_bulk_callback(struct urb *urb) { struct usb_ftdi *ftdi = (struct usb_ftdi *)urb->context; if (urb->status && !(urb->status == -ENOENT || urb->status == @@ -1187,11 +1184,8 @@ static ssize_t ftdi_elan_write(struct file *file, int retval = 0; struct urb *urb; char *buf; - char data[30 *3 + 4]; - char *d = data; - const char __user *s = user_buffer; - int m = (sizeof(data) - 1) / 3; - struct usb_ftdi *ftdi = (struct usb_ftdi *)file->private_data; + struct usb_ftdi *ftdi = file->private_data; + if (ftdi->disconnected > 0) { return -ENODEV; } @@ -1221,27 +1215,18 @@ static ssize_t ftdi_elan_write(struct file *file, if (retval) { dev_err(&ftdi->udev->dev, "failed submitting write urb, error %" "d\n", retval); - goto error_4; + goto error_3; } usb_free_urb(urb); - exit:; - if (count > m) { - int I = m - 1; - while (I-- > 0) { - d += sprintf(d, " %02X", 0x000000FF & *s++); - } - d += sprintf(d, " .."); - } else { - int I = count; - while (I-- > 0) { - d += sprintf(d, " %02X", 0x000000FF & *s++); - } - } + +exit: return count; - error_4: error_3:usb_buffer_free(ftdi->udev, count, buf, - urb->transfer_dma); - error_2:usb_free_urb(urb); - error_1:return retval; +error_3: + usb_buffer_free(ftdi->udev, count, buf, urb->transfer_dma); +error_2: + usb_free_urb(urb); +error_1: + return retval; } static struct file_operations ftdi_elan_fops = { |
