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path: root/drivers/block/paride/pcd.c
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Diffstat (limited to 'drivers/block/paride/pcd.c')
-rw-r--r--drivers/block/paride/pcd.c21
1 files changed, 18 insertions, 3 deletions
diff --git a/drivers/block/paride/pcd.c b/drivers/block/paride/pcd.c
index 71acf4e..76f8565 100644
--- a/drivers/block/paride/pcd.c
+++ b/drivers/block/paride/pcd.c
@@ -138,6 +138,7 @@ enum {D_PRT, D_PRO, D_UNI, D_MOD, D_SLV, D_DLY};
#include <linux/cdrom.h>
#include <linux/spinlock.h>
#include <linux/blkdev.h>
+#include <linux/smp_lock.h>
#include <asm/uaccess.h>
static DEFINE_SPINLOCK(pcd_lock);
@@ -224,13 +225,21 @@ static char *pcd_buf; /* buffer for request in progress */
static int pcd_block_open(struct block_device *bdev, fmode_t mode)
{
struct pcd_unit *cd = bdev->bd_disk->private_data;
- return cdrom_open(&cd->info, bdev, mode);
+ int ret;
+
+ lock_kernel();
+ ret = cdrom_open(&cd->info, bdev, mode);
+ unlock_kernel();
+
+ return ret;
}
static int pcd_block_release(struct gendisk *disk, fmode_t mode)
{
struct pcd_unit *cd = disk->private_data;
+ lock_kernel();
cdrom_release(&cd->info, mode);
+ unlock_kernel();
return 0;
}
@@ -238,7 +247,13 @@ static int pcd_block_ioctl(struct block_device *bdev, fmode_t mode,
unsigned cmd, unsigned long arg)
{
struct pcd_unit *cd = bdev->bd_disk->private_data;
- return cdrom_ioctl(&cd->info, bdev, mode, cmd, arg);
+ int ret;
+
+ lock_kernel();
+ ret = cdrom_ioctl(&cd->info, bdev, mode, cmd, arg);
+ unlock_kernel();
+
+ return ret;
}
static int pcd_block_media_changed(struct gendisk *disk)
@@ -251,7 +266,7 @@ static const struct block_device_operations pcd_bdops = {
.owner = THIS_MODULE,
.open = pcd_block_open,
.release = pcd_block_release,
- .locked_ioctl = pcd_block_ioctl,
+ .ioctl = pcd_block_ioctl,
.media_changed = pcd_block_media_changed,
};