diff options
Diffstat (limited to 'drivers/watchdog/cpwd.c')
| -rw-r--r-- | drivers/watchdog/cpwd.c | 38 |
1 files changed, 9 insertions, 29 deletions
diff --git a/drivers/watchdog/cpwd.c b/drivers/watchdog/cpwd.c index 32156e199c51..13a4d47e68cd 100644 --- a/drivers/watchdog/cpwd.c +++ b/drivers/watchdog/cpwd.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* cpwd.c - driver implementation for hardware watchdog * timers found on Sun Microsystems CP1400 and CP1500 boards. * @@ -25,11 +26,12 @@ #include <linux/interrupt.h> #include <linux/ioport.h> #include <linux/timer.h> +#include <linux/compat.h> #include <linux/slab.h> #include <linux/mutex.h> #include <linux/io.h> #include <linux/of.h> -#include <linux/of_device.h> +#include <linux/platform_device.h> #include <linux/uaccess.h> #include <asm/irq.h> @@ -170,7 +172,6 @@ MODULE_PARM_DESC(wd2_timeout, "Default watchdog2 timeout in 1/10secs"); MODULE_AUTHOR("Eric Brower <ebrower@usa.net>"); MODULE_DESCRIPTION("Hardware watchdog driver for Sun Microsystems CP1400/1500"); MODULE_LICENSE("GPL"); -MODULE_SUPPORTED_DEVICE("watchdog"); static void cpwd_writew(u16 val, void __iomem *addr) { @@ -239,7 +240,7 @@ static void cpwd_brokentimer(struct timer_list *unused) * were called directly instead of by kernel timer */ if (timer_pending(&cpwd_timer)) - del_timer(&cpwd_timer); + timer_delete(&cpwd_timer); for (id = 0; id < WD_NUMDEVS; id++) { if (p->devs[id].runstatus & WD_STAT_BSTOP) { @@ -394,7 +395,7 @@ static int cpwd_open(struct inode *inode, struct file *f) mutex_unlock(&cpwd_mutex); - return nonseekable_open(inode, f); + return stream_open(inode, f); } static int cpwd_release(struct inode *inode, struct file *file) @@ -472,27 +473,9 @@ static long cpwd_ioctl(struct file *file, unsigned int cmd, unsigned long arg) return 0; } -static long cpwd_compat_ioctl(struct file *file, unsigned int cmd, - unsigned long arg) +static long cpwd_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { - int rval = -ENOIOCTLCMD; - - switch (cmd) { - /* solaris ioctls are specific to this driver */ - case WIOCSTART: - case WIOCSTOP: - case WIOCGSTAT: - mutex_lock(&cpwd_mutex); - rval = cpwd_ioctl(file, cmd, arg); - mutex_unlock(&cpwd_mutex); - break; - - /* everything else is handled by the generic compat layer */ - default: - break; - } - - return rval; + return cpwd_ioctl(file, cmd, (unsigned long)compat_ptr(arg)); } static ssize_t cpwd_write(struct file *file, const char __user *buf, @@ -524,7 +507,6 @@ static const struct file_operations cpwd_fops = { .write = cpwd_write, .read = cpwd_read, .release = cpwd_release, - .llseek = no_llseek, }; static int cpwd_probe(struct platform_device *op) @@ -631,7 +613,7 @@ out_iounmap: return err; } -static int cpwd_remove(struct platform_device *op) +static void cpwd_remove(struct platform_device *op) { struct cpwd *p = platform_get_drvdata(op); int i; @@ -647,7 +629,7 @@ static int cpwd_remove(struct platform_device *op) } if (p->broken) - del_timer_sync(&cpwd_timer); + timer_delete_sync(&cpwd_timer); if (p->initialized) free_irq(p->irq, p); @@ -655,8 +637,6 @@ static int cpwd_remove(struct platform_device *op) of_iounmap(&op->resource[0], p->regs, 4 * WD_TIMER_REGSZ); cpwd_device = NULL; - - return 0; } static const struct of_device_id cpwd_match[] = { |