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| author | Alan Cox <alan@lxorguk.ukuu.org.uk> | 2008-07-04 09:51:21 +0200 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2008-07-04 09:51:21 +0200 |
| commit | be1fd70fea1100c57f3aa1934ebb93abc474e50c (patch) | |
| tree | fa187ff1f111326c599915b23c989e474694a453 /drivers | |
| parent | 823ed72e8fe566983b121e8cc3147dd50ce63a8a (diff) | |
| download | kernel_samsung_aries-be1fd70fea1100c57f3aa1934ebb93abc474e50c.zip kernel_samsung_aries-be1fd70fea1100c57f3aa1934ebb93abc474e50c.tar.gz kernel_samsung_aries-be1fd70fea1100c57f3aa1934ebb93abc474e50c.tar.bz2 | |
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 <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
(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 <jens.axboe@oracle.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/block/paride/pt.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/drivers/block/paride/pt.c b/drivers/block/paride/pt.c index 8b9549a..27455ee 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 <linux/mtio.h> #include <linux/device.h> #include <linux/sched.h> /* current, TASK_*, schedule_timeout() */ +#include <linux/smp_lock.h> #include <asm/uaccess.h> @@ -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; } } |