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path: root/drivers/block/paride/pf.c
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Diffstat (limited to 'drivers/block/paride/pf.c')
-rw-r--r--drivers/block/paride/pf.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/block/paride/pf.c b/drivers/block/paride/pf.c
index c059aab3006b..38b4d566b816 100644
--- a/drivers/block/paride/pf.c
+++ b/drivers/block/paride/pf.c
@@ -152,6 +152,7 @@ enum {D_PRT, D_PRO, D_UNI, D_MOD, D_SLV, D_LUN, D_DLY};
152#include <linux/spinlock.h> 152#include <linux/spinlock.h>
153#include <linux/blkdev.h> 153#include <linux/blkdev.h>
154#include <linux/blkpg.h> 154#include <linux/blkpg.h>
155#include <linux/smp_lock.h>
155#include <asm/uaccess.h> 156#include <asm/uaccess.h>
156 157
157static DEFINE_SPINLOCK(pf_spin_lock); 158static DEFINE_SPINLOCK(pf_spin_lock);
@@ -266,7 +267,7 @@ static const struct block_device_operations pf_fops = {
266 .owner = THIS_MODULE, 267 .owner = THIS_MODULE,
267 .open = pf_open, 268 .open = pf_open,
268 .release = pf_release, 269 .release = pf_release,
269 .locked_ioctl = pf_ioctl, 270 .ioctl = pf_ioctl,
270 .getgeo = pf_getgeo, 271 .getgeo = pf_getgeo,
271 .media_changed = pf_check_media, 272 .media_changed = pf_check_media,
272}; 273};
@@ -342,7 +343,10 @@ static int pf_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd, u
342 343
343 if (pf->access != 1) 344 if (pf->access != 1)
344 return -EBUSY; 345 return -EBUSY;
346 lock_kernel();
345 pf_eject(pf); 347 pf_eject(pf);
348 unlock_kernel();
349
346 return 0; 350 return 0;
347} 351}
348 352