diff options
| author | Ingo Molnar <mingo@elte.hu> | 2008-07-18 19:31:12 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-18 19:31:12 +0200 |
| commit | 3e370b29d35fb01bfb92c2814d6f79bf6a2cb970 (patch) | |
| tree | 3b8fb467d60bfe6a34686f4abdc3a60050ba40a4 /drivers/char/lcd.c | |
| parent | 88d1dce3a74367291f65a757fbdcaf17f042f30c (diff) | |
| parent | 5b664cb235e97afbf34db9c4d77f08ebd725335e (diff) | |
Merge branch 'linus' into x86/pci-ioapic-boot-irq-quirks
Conflicts:
drivers/pci/quirks.c
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/char/lcd.c')
| -rw-r--r-- | drivers/char/lcd.c | 3 |
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 @@ #include <linux/mc146818rtc.h> #include <linux/netdevice.h> #include <linux/sched.h> +#include <linux/smp_lock.h> #include <linux/delay.h> #include <asm/io.h> @@ -414,6 +415,8 @@ static int lcd_ioctl(struct inode *inode, struct file *file, static int lcd_open(struct inode *inode, struct file *file) { + cycle_kernel_lock(); + if (!lcd_present) return -ENXIO; else |