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authorLinus Torvalds <torvalds@linux-foundation.org>2008-07-14 14:48:31 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-14 14:48:31 -0700
commitd1794f2c5b5817eb79ccc5e00701ca748d1b073a (patch)
tree5a4c98e694e88a8c82f342d0cc9edb2a4cbbef36 /drivers/char/agp
parenta41eebab7537890409ea9dfe0fcda9b5fbdb090d (diff)
parent2fceef397f9880b212a74c418290ce69e7ac00eb (diff)
Merge branch 'bkl-removal' of git://git.lwn.net/linux-2.6
* 'bkl-removal' of git://git.lwn.net/linux-2.6: (146 commits) IB/umad: BKL is not needed for ib_umad_open() IB/uverbs: BKL is not needed for ib_uverbs_open() bf561-coreb: BKL unneeded for open() Call fasync() functions without the BKL snd/PCM: fasync BKL pushdown ipmi: fasync BKL pushdown ecryptfs: fasync BKL pushdown Bluetooth VHCI: fasync BKL pushdown tty_io: fasync BKL pushdown tun: fasync BKL pushdown i2o: fasync BKL pushdown mpt: fasync BKL pushdown Remove BKL from remote_llseek v2 Make FAT users happier by not deadlocking x86-mce: BKL pushdown vmwatchdog: BKL pushdown vmcp: BKL pushdown via-pmu: BKL pushdown uml-random: BKL pushdown uml-mmapper: BKL pushdown ...
Diffstat (limited to 'drivers/char/agp')
-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 e6cb1ab03e06..a96f3197e60f 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;
}