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authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-24 08:01:10 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-24 08:01:10 -0700
commitf13771187b9423b824f32518319f6da85d819003 (patch)
treec431cf16c286065a302d5f3fb43fc1abac7e4047 /drivers/scsi/3w-9xxx.c
parent15953654cc312429740fd58fb37a5a3d63a54376 (diff)
parent9f37af654fda88a8dcca74c785f6c20e52758866 (diff)
Merge branch 'bkl/ioctl' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing
* 'bkl/ioctl' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing: uml: Pushdown the bkl from harddog_kern ioctl sunrpc: Pushdown the bkl from sunrpc cache ioctl sunrpc: Pushdown the bkl from ioctl autofs4: Pushdown the bkl from ioctl uml: Convert to unlocked_ioctls to remove implicit BKL ncpfs: BKL ioctl pushdown coda: Clean-up whitespace problems in pioctl.c coda: BKL ioctl pushdown drivers: Push down BKL into various drivers isdn: Push down BKL into ioctl functions scsi: Push down BKL into ioctl functions dvb: Push down BKL into ioctl functions smbfs: Push down BKL into ioctl function coda/psdev: Remove BKL from ioctl function um/mmapper: Remove BKL usage sn_hwperf: Kill BKL usage hfsplus: Push down BKL into ioctl function
Diffstat (limited to 'drivers/scsi/3w-9xxx.c')
-rw-r--r--drivers/scsi/3w-9xxx.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c
index 1bb774becf2..e20b7bdd4c7 100644
--- a/drivers/scsi/3w-9xxx.c
+++ b/drivers/scsi/3w-9xxx.c
@@ -125,7 +125,7 @@ static void twa_aen_queue_event(TW_Device_Extension *tw_dev, TW_Command_Apache_H
static int twa_aen_read_queue(TW_Device_Extension *tw_dev, int request_id);
static char *twa_aen_severity_lookup(unsigned char severity_code);
static void twa_aen_sync_time(TW_Device_Extension *tw_dev, int request_id);
-static int twa_chrdev_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg);
+static long twa_chrdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
static int twa_chrdev_open(struct inode *inode, struct file *file);
static int twa_fill_sense(TW_Device_Extension *tw_dev, int request_id, int copy_sense, int print_host);
static void twa_free_request_id(TW_Device_Extension *tw_dev,int request_id);
@@ -220,7 +220,7 @@ static struct device_attribute *twa_host_attrs[] = {
/* File operations struct for character device */
static const struct file_operations twa_fops = {
.owner = THIS_MODULE,
- .ioctl = twa_chrdev_ioctl,
+ .unlocked_ioctl = twa_chrdev_ioctl,
.open = twa_chrdev_open,
.release = NULL
};
@@ -637,8 +637,9 @@ out:
} /* End twa_check_srl() */
/* This function handles ioctl for the character device */
-static int twa_chrdev_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+static long twa_chrdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
+ struct inode *inode = file->f_path.dentry->d_inode;
long timeout;
unsigned long *cpu_addr, data_buffer_length_adjusted = 0, flags = 0;
dma_addr_t dma_handle;
@@ -657,6 +658,8 @@ static int twa_chrdev_ioctl(struct inode *inode, struct file *file, unsigned int
int retval = TW_IOCTL_ERROR_OS_EFAULT;
void __user *argp = (void __user *)arg;
+ lock_kernel();
+
/* Only let one of these through at a time */
if (mutex_lock_interruptible(&tw_dev->ioctl_lock)) {
retval = TW_IOCTL_ERROR_OS_EINTR;
@@ -876,6 +879,7 @@ out3:
out2:
mutex_unlock(&tw_dev->ioctl_lock);
out:
+ unlock_kernel();
return retval;
} /* End twa_chrdev_ioctl() */