From be1fd70fea1100c57f3aa1934ebb93abc474e50c Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Fri, 4 Jul 2008 09:51:21 +0200 Subject: [PATCH] paride: push ioctl down into driver Leaves us with lock_kernel for two methods. Also remove a bogus printk with no printk level and return -ENOTTY not -EINVAL for correctness. Signed-off-by: Alan Cox Signed-off-by: Andrew Morton (Jens: added smp_lock.h include to pt.c, otherwise it wont compile because of missing {un}lock_kernel() definition) Signed-off-by: Jens Axboe --- drivers/block/paride/pt.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/drivers/block/paride/pt.c b/drivers/block/paride/pt.c index 8b9549ab4a4e..27455ee1e9da 100644 --- a/drivers/block/paride/pt.c +++ b/drivers/block/paride/pt.c @@ -146,6 +146,7 @@ static int (*drives[4])[6] = {&drive0, &drive1, &drive2, &drive3}; #include #include #include /* current, TASK_*, schedule_timeout() */ +#include #include @@ -189,8 +190,7 @@ module_param_array(drive3, int, NULL, 0); #define ATAPI_LOG_SENSE 0x4d static int pt_open(struct inode *inode, struct file *file); -static int pt_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg); +static long pt_ioctl(struct file *file, unsigned int cmd, unsigned long arg); static int pt_release(struct inode *inode, struct file *file); static ssize_t pt_read(struct file *filp, char __user *buf, size_t count, loff_t * ppos); @@ -236,7 +236,7 @@ static const struct file_operations pt_fops = { .owner = THIS_MODULE, .read = pt_read, .write = pt_write, - .ioctl = pt_ioctl, + .unlocked_ioctl = pt_ioctl, .open = pt_open, .release = pt_release, }; @@ -685,8 +685,7 @@ out: return err; } -static int pt_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) +static long pt_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { struct pt_unit *tape = file->private_data; struct mtop __user *p = (void __user *)arg; @@ -700,23 +699,26 @@ static int pt_ioctl(struct inode *inode, struct file *file, switch (mtop.mt_op) { case MTREW: + lock_kernel(); pt_rewind(tape); + unlock_kernel(); return 0; case MTWEOF: + lock_kernel(); pt_write_fm(tape); + unlock_kernel(); return 0; default: - printk("%s: Unimplemented mt_op %d\n", tape->name, + /* FIXME: rate limit ?? */ + printk(KERN_DEBUG "%s: Unimplemented mt_op %d\n", tape->name, mtop.mt_op); return -EINVAL; } default: - printk("%s: Unimplemented ioctl 0x%x\n", tape->name, cmd); - return -EINVAL; - + return -ENOTTY; } } -- 2.20.1