Staging: iio: light: fix dangling pointers

[mv-sheeva.git] / drivers / block / pktcdvd.c

diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 39c8514442eb7364e42fa868e1c5499f9d3d10c7..8a549db2aa7859b588e106c981301dbd5118aec6 100644 (file)
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -48,6 +48,7 @@
 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
+#include <linux/compat.h>
 #include <linux/kthread.h>
 #include <linux/errno.h>
 #include <linux/spinlock.h>
@@ -57,6 +58,7 @@
 #include <linux/miscdevice.h>
 #include <linux/freezer.h>
 #include <linux/mutex.h>
+#include <linux/slab.h>
 #include <scsi/scsi_cmnd.h>
 #include <scsi/scsi_ioctl.h>
 #include <scsi/scsi.h>
@@ -2983,7 +2985,7 @@ static void pkt_get_status(struct pkt_ctrl_command *ctrl_cmd)
        mutex_unlock(&ctl_mutex);
 }
 
-static int pkt_ctl_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+static long pkt_ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
        void __user *argp = (void __user *)arg;
        struct pkt_ctrl_command ctrl_cmd;
@@ -3020,10 +3022,20 @@ static int pkt_ctl_ioctl(struct inode *inode, struct file *file, unsigned int cm
        return ret;
 }
 
+#ifdef CONFIG_COMPAT
+static long pkt_ctl_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+       return pkt_ctl_ioctl(file, cmd, (unsigned long)compat_ptr(arg));
+}
+#endif
 
 static const struct file_operations pkt_ctl_fops = {
-       .ioctl   = pkt_ctl_ioctl,
-       .owner   = THIS_MODULE,
+       .open           = nonseekable_open,
+       .unlocked_ioctl = pkt_ctl_ioctl,
+#ifdef CONFIG_COMPAT
+       .compat_ioctl   = pkt_ctl_compat_ioctl,
+#endif
+       .owner          = THIS_MODULE,
 };
 
 static struct miscdevice pkt_misc = {