Merge branch 'master' into csb1725

[mv-sheeva.git] / drivers / pnp / isapnp / proc.c

diff --git a/drivers/pnp/isapnp/proc.c b/drivers/pnp/isapnp/proc.c
index 3f94edab25fa7f8551d456b2d8df34e1fc0d3ed4..315b3112aca85ece5a804778c6632a972ad32c7d 100644 (file)
--- a/drivers/pnp/isapnp/proc.c
+++ b/drivers/pnp/isapnp/proc.c
@@ -21,7 +21,6 @@
 #include <linux/isapnp.h>
 #include <linux/proc_fs.h>
 #include <linux/init.h>
-#include <linux/smp_lock.h>
 #include <asm/uaccess.h>
 
 extern struct pnp_protocol isapnp_protocol;
@@ -31,8 +30,9 @@ static struct proc_dir_entry *isapnp_proc_bus_dir = NULL;
 static loff_t isapnp_proc_bus_lseek(struct file *file, loff_t off, int whence)
 {
        loff_t new = -1;
+       struct inode *inode = file->f_path.dentry->d_inode;
 
-       lock_kernel();
+       mutex_lock(&inode->i_mutex);
        switch (whence) {
        case 0:
                new = off;
@@ -44,12 +44,12 @@ static loff_t isapnp_proc_bus_lseek(struct file *file, loff_t off, int whence)
                new = 256 + off;
                break;
        }
-       if (new < 0 || new > 256) {
-               unlock_kernel();
-               return -EINVAL;
-       }
-       unlock_kernel();
-       return (file->f_pos = new);
+       if (new < 0 || new > 256)
+               new = -EINVAL;
+       else
+               file->f_pos = new;
+       mutex_unlock(&inode->i_mutex);
+       return new;
 }
 
 static ssize_t isapnp_proc_bus_read(struct file *file, char __user * buf,