Merge branch 'linus' into cpus4096

[pandora-kernel.git] / drivers / char / agp / frontend.c

diff --git a/drivers/char/agp/frontend.c b/drivers/char/agp/frontend.c
index 857b262..a96f319 100644 (file)
--- a/drivers/char/agp/frontend.c
+++ b/drivers/char/agp/frontend.c
@@ -39,6 +39,7 @@
 #include <linux/mm.h>
 #include <linux/fs.h>
 #include <linux/sched.h>
+#include <linux/smp_lock.h>
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
 #include "agp.h"
@@ -395,7 +396,7 @@ static int agp_remove_controller(struct agp_controller *controller)
 
        if (agp_fe.current_controller == controller) {
                agp_fe.current_controller = NULL;
-               agp_fe.backend_acquired = FALSE;
+               agp_fe.backend_acquired = false;
                agp_backend_release(agp_bridge);
        }
        kfree(controller);
@@ -443,7 +444,7 @@ static void agp_controller_release_current(struct agp_controller *controller,
        }
 
        agp_fe.current_controller = NULL;
-       agp_fe.used_by_controller = FALSE;
+       agp_fe.used_by_controller = false;
        agp_backend_release(agp_bridge);
 }
 
@@ -573,7 +574,7 @@ static int agp_mmap(struct file *file, struct vm_area_struct *vma)
 
        mutex_lock(&(agp_fe.agp_mutex));
 
-       if (agp_fe.backend_acquired != TRUE)
+       if (agp_fe.backend_acquired != true)
                goto out_eperm;
 
        if (!(test_bit(AGP_FF_IS_VALID, &priv->access_flags)))
@@ -677,6 +678,7 @@ static int agp_open(struct inode *inode, struct file *file)
        struct agp_client *client;
        int rc = -ENXIO;
 
+       lock_kernel();
        mutex_lock(&(agp_fe.agp_mutex));
 
        if (minor != AGPGART_MINOR)
@@ -703,12 +705,14 @@ static int agp_open(struct inode *inode, struct file *file)
        agp_insert_file_private(priv);
        DBG("private=%p, client=%p", priv, client);
        mutex_unlock(&(agp_fe.agp_mutex));
+       unlock_kernel();
        return 0;
 
 err_out_nomem:
        rc = -ENOMEM;
 err_out:
        mutex_unlock(&(agp_fe.agp_mutex));
+       unlock_kernel();
        return rc;
 }
 
@@ -768,7 +772,7 @@ int agpioc_acquire_wrap(struct agp_file_private *priv)
 
        atomic_inc(&agp_bridge->agp_in_use);
 
-       agp_fe.backend_acquired = TRUE;
+       agp_fe.backend_acquired = true;
 
        controller = agp_find_controller_by_pid(priv->my_pid);
 
@@ -778,7 +782,7 @@ int agpioc_acquire_wrap(struct agp_file_private *priv)
                controller = agp_create_controller(priv->my_pid);
 
                if (controller == NULL) {
-                       agp_fe.backend_acquired = FALSE;
+                       agp_fe.backend_acquired = false;
                        agp_backend_release(agp_bridge);
                        return -ENOMEM;
                }
@@ -981,7 +985,7 @@ static long agp_ioctl(struct file *file,
                ret_val = -EINVAL;
                goto ioctl_out;
        }
-       if ((agp_fe.backend_acquired != TRUE) &&
+       if ((agp_fe.backend_acquired != true) &&
            (cmd != AGPIOC_ACQUIRE)) {
                ret_val = -EBUSY;
                goto ioctl_out;