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authorArnd Bergmann <arnd@arndb.de>2019-10-08 09:36:16 +0200
committerWim Van Sebroeck <wim@linux-watchdog.org>2019-11-05 16:58:11 +0100
commitc58e81341aecf79c8ce6ea79fee31b3193cd6e78 (patch)
treedeffa3d1e425d5262bb7b9893ef86fbc2eafebf6 /drivers/watchdog/cpwd.c
parentLinux 5.4-rc6 (diff)
downloadlinux-c58e81341aecf79c8ce6ea79fee31b3193cd6e78.tar.xz
linux-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/cpwd.c')
-rw-r--r--drivers/watchdog/cpwd.c8
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,