Merge branch 'linus' into x86/urgent

[pandora-kernel.git] / drivers / s390 / char / tape_char.c

diff --git a/drivers/s390/char/tape_char.c b/drivers/s390/char/tape_char.c
index ebe8406..687720b 100644 (file)
--- 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;
 }