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| author |   Al Viro <viro@zeniv.linux.org.uk> | 2015-12-05 22:04:48 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2015-12-23 10:41:31 -0500 |
| commit | b25472f9b96159cc0b9b7ed449448805973cd789 (patch) | |
| tree | 7963f6d5adc2a82f6f10b4f9cf427ce931f67c76 /drivers/usb/core/devices.c | |
| parent | don't open-code generic_file_llseek_size() (diff) | |
| download | wireguard-linux-b25472f9b96159cc0b9b7ed449448805973cd789.tar.xz wireguard-linux-b25472f9b96159cc0b9b7ed449448805973cd789.zip | |
new helpers: no_seek_end_llseek{,_size}()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'drivers/usb/core/devices.c')
| -rw-r--r-- | drivers/usb/core/devices.c | 26 |
1 files changed, 1 insertions, 25 deletions
diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c index 2a3bbdf7eb94..cffa0a0d7de2 100644 --- a/drivers/usb/core/devices.c +++ b/drivers/usb/core/devices.c @@ -661,32 +661,8 @@ static unsigned int usb_device_poll(struct file *file, return 0; } -static loff_t usb_device_lseek(struct file *file, loff_t offset, int orig) -{ - loff_t ret; - - mutex_lock(&file_inode(file)->i_mutex); - - switch (orig) { - case 0: - file->f_pos = offset; - ret = file->f_pos; - break; - case 1: - file->f_pos += offset; - ret = file->f_pos; - break; - case 2: - default: - ret = -EINVAL; - } - - mutex_unlock(&file_inode(file)->i_mutex); - return ret; -} - const struct file_operations usbfs_devices_fops = { - .llseek = usb_device_lseek, + .llseek = no_seek_end_llseek, .read = usb_device_read, .poll = usb_device_poll, }; |