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authorLinus Torvalds <torvalds@linux-foundation.org>2008-07-14 17:48:31 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-14 17:48:31 -0400
commitd1794f2c5b5817eb79ccc5e00701ca748d1b073a (patch)
tree5a4c98e694e88a8c82f342d0cc9edb2a4cbbef36 /drivers/char/lcd.c
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/lcd.c')
-rw-r--r--drivers/char/lcd.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/char/lcd.c b/drivers/char/lcd.c
index 4fe9206f84de..1c29b20e4f4c 100644
--- a/drivers/char/lcd.c
+++ b/drivers/char/lcd.c
@@ -20,6 +20,7 @@
20#include <linux/mc146818rtc.h> 20#include <linux/mc146818rtc.h>
21#include <linux/netdevice.h> 21#include <linux/netdevice.h>
22#include <linux/sched.h> 22#include <linux/sched.h>
23#include <linux/smp_lock.h>
23#include <linux/delay.h> 24#include <linux/delay.h>
24 25
25#include <asm/io.h> 26#include <asm/io.h>
@@ -414,6 +415,8 @@ static int lcd_ioctl(struct inode *inode, struct file *file,
414 415
415static int lcd_open(struct inode *inode, struct file *file) 416static int lcd_open(struct inode *inode, struct file *file)
416{ 417{
418 cycle_kernel_lock();
419
417 if (!lcd_present) 420 if (!lcd_present)
418 return -ENXIO; 421 return -ENXIO;
419 else 422 else