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authorArnd Bergmann <arnd@arndb.de>2008-05-20 19:15:30 +0200
committerJonathan Corbet <corbet@lwn.net>2008-06-20 14:05:54 -0600
commita076230134f3083a58cef99e48b127818ef01e7a (patch)
tree84aece35481ff8bed415875aa88a27bcabe155af
parent8f5934278d1d86590244c2791b28f77d67466007 (diff)
agp-frontend: BKL pushdown
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
-rw-r--r--drivers/char/agp/frontend.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/char/agp/frontend.c b/drivers/char/agp/frontend.c
index 857b26227d8..963eff28fa0 100644
--- 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"
@@ -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;
}