diff options
| author |   Arnd Bergmann <arnd@arndb.de> | 2019-10-08 09:36:16 +0200 |
|---|---|---|
| committer |   Wim Van Sebroeck <wim@linux-watchdog.org> | 2019-11-05 16:58:11 +0100 |
| commit | c58e81341aecf79c8ce6ea79fee31b3193cd6e78 (patch) | |
| tree | deffa3d1e425d5262bb7b9893ef86fbc2eafebf6 /drivers/watchdog | |
| parent | Linux 5.4-rc6 (diff) | |
| download | linux-dev-c58e81341aecf79c8ce6ea79fee31b3193cd6e78.tar.xz linux-dev-c58e81341aecf79c8ce6ea79fee31b3193cd6e78.zip | |
watchdog: cpwd: fix build regression
The compat_ptr_ioctl() infrastructure did not make it into
linux-5.4, so cpwd now fails to build.
Fix it by using an open-coded version.
Fixes: 68f28b01fb9e ("watchdog: cpwd: use generic compat_ptr_ioctl")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Diffstat (limited to 'drivers/watchdog')
| -rw-r--r-- | drivers/watchdog/cpwd.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/watchdog/cpwd.c b/drivers/watchdog/cpwd.c index 9393be584e72..808eeb4779e4 100644 --- a/drivers/watchdog/cpwd.c +++ b/drivers/watchdog/cpwd.c @@ -26,6 +26,7 @@ #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> @@ -473,6 +474,11 @@ 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) +{ + return cpwd_ioctl(file, cmd, (unsigned long)compat_ptr(arg)); +} + static ssize_t cpwd_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) { @@ -497,7 +503,7 @@ static ssize_t cpwd_read(struct file *file, char __user *buffer, static const struct file_operations cpwd_fops = { .owner = THIS_MODULE, .unlocked_ioctl = cpwd_ioctl, - .compat_ioctl = compat_ptr_ioctl, + .compat_ioctl = cpwd_compat_ioctl, .open = cpwd_open, .write = cpwd_write, .read = cpwd_read, |