zorro: BKL removal

Remove BKL use from proc_bus_zorro_lseek(), like was done for
proc_bus_pci_lseek() a long time ago.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 8 insertions, 7 deletions

diff --git a/drivers/zorro/proc.c b/drivers/zorro/proc.c
index 3c7046d79654..4f4ea88fbb71 100644
--- a/drivers/zorro/proc.c
+++ b/drivers/zorro/proc.c
@@ -22,8 +22,9 @@ static loff_t
 proc_bus_zorro_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;
@@ -35,12 +36,12 @@ proc_bus_zorro_lseek(struct file *file, loff_t off, int whence)
                 new = sizeof(struct ConfigDev) + off;
                 break;
         }
-        if (new < 0 || new > sizeof(struct ConfigDev)) {
-                unlock_kernel();
-                return -EINVAL;
-        }
-        unlock_kernel();
-        return (file->f_pos = new);
+        if (new < 0 || new > sizeof(struct ConfigDev))
+                new = -EINVAL;
+        else
+                file->f_pos = new;
+        mutex_unlock(&inode->i_mutex);
+        return new;
 }
 
 static ssize_t