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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2008-07-21 08:55:14 +0400 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2008-07-21 08:55:14 +0400 |
| commit | 908cf4b925e419bc74f3297b2f0e51d6f8a81da2 (patch) | |
| tree | 6c2da79366d4695a9c2560ab18259eca8a2a25b4 /drivers/s390/char/tape_char.c | |
| parent | 92c49890922d54cba4b1eadeb0b185773c2c9570 (diff) | |
| parent | 14b395e35d1afdd8019d11b92e28041fad591b71 (diff) | |
| download | linux-908cf4b925e419bc74f3297b2f0e51d6f8a81da2.tar.xz | |
Merge master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 into next
Diffstat (limited to 'drivers/s390/char/tape_char.c')
| -rw-r--r-- | drivers/s390/char/tape_char.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/s390/char/tape_char.c b/drivers/s390/char/tape_char.c index ebe84067bae9..687720b552d1 100644 --- a/drivers/s390/char/tape_char.c +++ b/drivers/s390/char/tape_char.c @@ -14,6 +14,7 @@ #include <linux/types.h> #include <linux/proc_fs.h> #include <linux/mtio.h> +#include <linux/smp_lock.h> #include <asm/uaccess.h> @@ -289,21 +290,26 @@ tapechar_open (struct inode *inode, struct file *filp) if (imajor(filp->f_path.dentry->d_inode) != tapechar_major) return -ENODEV; + lock_kernel(); minor = iminor(filp->f_path.dentry->d_inode); device = tape_get_device(minor / TAPE_MINORS_PER_DEV); if (IS_ERR(device)) { DBF_EVENT(3, "TCHAR:open: tape_get_device() failed\n"); - return PTR_ERR(device); + rc = PTR_ERR(device); + goto out; } rc = tape_open(device); if (rc == 0) { filp->private_data = device; - return nonseekable_open(inode, filp); + rc = nonseekable_open(inode, filp); } - tape_put_device(device); + else + tape_put_device(device); +out: + unlock_kernel(); return rc; } |