Staging: push down BKL into ioctl functions
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/staging/crystalhd/crystalhd_lnx.c b/drivers/staging/crystalhd/crystalhd_lnx.c
index 58fd91a..6090a1d 100644
--- a/drivers/staging/crystalhd/crystalhd_lnx.c
+++ b/drivers/staging/crystalhd/crystalhd_lnx.c
@@ -16,6 +16,7 @@
***************************************************************************/
#include <linux/version.h>
+#include <linux/smp_lock.h>
#include <linux/slab.h>
#include "crystalhd_lnx.h"
@@ -261,12 +262,12 @@
}
/* API interfaces */
-static int chd_dec_ioctl(struct inode *in, struct file *fd,
- unsigned int cmd, unsigned long ua)
+static long chd_dec_ioctl(struct file *fd, unsigned int cmd, unsigned long ua)
{
struct crystalhd_adp *adp = chd_get_adp();
crystalhd_cmd_proc cproc;
struct crystalhd_user *uc;
+ int ret;
if (!adp || !fd) {
BCMLOG_ERR("Invalid adp\n");
@@ -279,13 +280,17 @@
return -ENODATA;
}
+ lock_kernel();
cproc = crystalhd_get_cmd_proc(&adp->cmds, cmd, uc);
if (!cproc) {
BCMLOG_ERR("Unhandled command: %d\n", cmd);
+ unlock_kernel();
return -EINVAL;
}
- return chd_dec_api_cmd(adp, ua, uc->uid, cmd, cproc);
+ ret = chd_dec_api_cmd(adp, ua, uc->uid, cmd, cproc);
+ unlock_kernel();
+ return ret;
}
static int chd_dec_open(struct inode *in, struct file *fd)
@@ -345,7 +350,7 @@
static const struct file_operations chd_dec_fops = {
.owner = THIS_MODULE,
- .ioctl = chd_dec_ioctl,
+ .unlocked_ioctl = chd_dec_ioctl,
.open = chd_dec_open,
.release = chd_dec_close,
};
diff --git a/drivers/staging/dt3155/dt3155_drv.c b/drivers/staging/dt3155/dt3155_drv.c
index e2c44ec..7e6095f 100644
--- a/drivers/staging/dt3155/dt3155_drv.c
+++ b/drivers/staging/dt3155/dt3155_drv.c
@@ -63,6 +63,7 @@
#include <linux/types.h>
#include <linux/poll.h>
#include <linux/sched.h>
+#include <linux/smp_lock.h>
#include <asm/io.h>
#include <asm/uaccess.h>
@@ -835,6 +836,17 @@
return 0;
}
+static long
+dt3155_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+ int ret;
+
+ lock_kernel();
+ ret = dt3155_ioctl(file->f_path.dentry->d_inode, file, cmd, arg);
+ unlock_kernel();
+
+ return ret;
+}
/*****************************************************
* file operations supported by DT3155 driver
@@ -842,12 +854,12 @@
* register_chrdev
*****************************************************/
static struct file_operations dt3155_fops = {
- read: dt3155_read,
- ioctl: dt3155_ioctl,
- mmap: dt3155_mmap,
- poll: dt3155_poll,
- open: dt3155_open,
- release: dt3155_close
+ .read = dt3155_read,
+ .unlocked_ioctl = dt3155_unlocked_ioctl,
+ .mmap = dt3155_mmap,
+ .poll = dt3155_poll,
+ .open = dt3155_open,
+ .release = dt3155_close
};
diff --git a/drivers/staging/vme/devices/vme_user.c b/drivers/staging/vme/devices/vme_user.c
index 1ab9a98..bc16fc07 100644
--- a/drivers/staging/vme/devices/vme_user.c
+++ b/drivers/staging/vme/devices/vme_user.c
@@ -31,6 +31,7 @@
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/syscalls.h>
+#include <linux/smp_lock.h>
#include <linux/types.h>
#include <asm/io.h>
@@ -130,8 +131,7 @@
static ssize_t vme_user_read(struct file *, char *, size_t, loff_t *);
static ssize_t vme_user_write(struct file *, const char *, size_t, loff_t *);
static loff_t vme_user_llseek(struct file *, loff_t, int);
-static int vme_user_ioctl(struct inode *, struct file *, unsigned int,
- unsigned long);
+static long vme_user_unlocked_ioctl(struct file *, unsigned int, unsigned long);
static int __init vme_user_probe(struct device *, int, int);
static int __exit vme_user_remove(struct device *, int, int);
@@ -142,7 +142,7 @@
.read = vme_user_read,
.write = vme_user_write,
.llseek = vme_user_llseek,
- .ioctl = vme_user_ioctl,
+ .unlocked_ioctl = vme_user_unlocked_ioctl,
};
@@ -555,6 +555,18 @@
return -EINVAL;
}
+static long
+vme_user_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+ int ret;
+
+ lock_kernel();
+ ret = vme_user_ioctl(file->f_path.dentry->d_inode, file, cmd, arg);
+ unlock_kernel();
+
+ return ret;
+}
+
/*
* Unallocate a previously allocated buffer