diff options
Diffstat (limited to 'drivers/watchdog/pcwd_usb.c')
| -rw-r--r-- | drivers/watchdog/pcwd_usb.c | 34 |
1 files changed, 15 insertions, 19 deletions
diff --git a/drivers/watchdog/pcwd_usb.c b/drivers/watchdog/pcwd_usb.c index 4d02f26156f9..b636650b714b 100644 --- a/drivers/watchdog/pcwd_usb.c +++ b/drivers/watchdog/pcwd_usb.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Berkshire USB-PC Watchdog Card Driver * @@ -10,11 +11,6 @@ * Rob Radez <rob@osinvestor.com>, * Greg Kroah-Hartman <greg@kroah.com> * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * * Neither Wim Van Sebroeck nor Iguana vzw. admit liability nor * provide warranty for any of this software. This material is * provided "AS-IS" and at no charge. @@ -329,7 +325,8 @@ static int usb_pcwd_set_heartbeat(struct usb_pcwd_private *usb_pcwd, int t) static int usb_pcwd_get_temperature(struct usb_pcwd_private *usb_pcwd, int *temperature) { - unsigned char msb, lsb; + unsigned char msb = 0x00; + unsigned char lsb = 0x00; usb_pcwd_send_command(usb_pcwd, CMD_READ_TEMP, &msb, &lsb); @@ -345,7 +342,8 @@ static int usb_pcwd_get_temperature(struct usb_pcwd_private *usb_pcwd, static int usb_pcwd_get_timeleft(struct usb_pcwd_private *usb_pcwd, int *time_left) { - unsigned char msb, lsb; + unsigned char msb = 0x00; + unsigned char lsb = 0x00; /* Read the time that's left before rebooting */ /* Note: if the board is not yet armed then we will read 0xFFFF */ @@ -456,7 +454,7 @@ static long usb_pcwd_ioctl(struct file *file, unsigned int cmd, usb_pcwd_keepalive(usb_pcwd_device); } - /* fall through */ + fallthrough; case WDIOC_GETTIMEOUT: return put_user(heartbeat, p); @@ -485,7 +483,7 @@ static int usb_pcwd_open(struct inode *inode, struct file *file) /* Activate */ usb_pcwd_start(usb_pcwd_device); usb_pcwd_keepalive(usb_pcwd_device); - return nonseekable_open(inode, file); + return stream_open(inode, file); } static int usb_pcwd_release(struct inode *inode, struct file *file) @@ -524,7 +522,7 @@ static ssize_t usb_pcwd_temperature_read(struct file *file, char __user *data, static int usb_pcwd_temperature_open(struct inode *inode, struct file *file) { - return nonseekable_open(inode, file); + return stream_open(inode, file); } static int usb_pcwd_temperature_release(struct inode *inode, struct file *file) @@ -551,9 +549,9 @@ static int usb_pcwd_notify_sys(struct notifier_block *this, unsigned long code, static const struct file_operations usb_pcwd_fops = { .owner = THIS_MODULE, - .llseek = no_llseek, .write = usb_pcwd_write, .unlocked_ioctl = usb_pcwd_ioctl, + .compat_ioctl = compat_ptr_ioctl, .open = usb_pcwd_open, .release = usb_pcwd_release, }; @@ -566,7 +564,6 @@ static struct miscdevice usb_pcwd_miscdev = { static const struct file_operations usb_pcwd_temperature_fops = { .owner = THIS_MODULE, - .llseek = no_llseek, .read = usb_pcwd_temperature_read, .open = usb_pcwd_temperature_open, .release = usb_pcwd_temperature_release, @@ -582,19 +579,18 @@ static struct notifier_block usb_pcwd_notifier = { .notifier_call = usb_pcwd_notify_sys, }; -/** +/* * usb_pcwd_delete */ static inline void usb_pcwd_delete(struct usb_pcwd_private *usb_pcwd) { usb_free_urb(usb_pcwd->intr_urb); - if (usb_pcwd->intr_buffer != NULL) - usb_free_coherent(usb_pcwd->udev, usb_pcwd->intr_size, - usb_pcwd->intr_buffer, usb_pcwd->intr_dma); + usb_free_coherent(usb_pcwd->udev, usb_pcwd->intr_size, + usb_pcwd->intr_buffer, usb_pcwd->intr_dma); kfree(usb_pcwd); } -/** +/* * usb_pcwd_probe * * Called by the usb core when a new device is connected that it thinks @@ -660,7 +656,7 @@ static int usb_pcwd_probe(struct usb_interface *interface, /* set up the memory buffer's */ usb_pcwd->intr_buffer = usb_alloc_coherent(udev, usb_pcwd->intr_size, - GFP_ATOMIC, &usb_pcwd->intr_dma); + GFP_KERNEL, &usb_pcwd->intr_dma); if (!usb_pcwd->intr_buffer) { pr_err("Out of memory\n"); goto error; @@ -762,7 +758,7 @@ error: } -/** +/* * usb_pcwd_disconnect * * Called by the usb core when the device is removed from the system. |