diff options
Diffstat (limited to 'drivers/parisc/eisa_eeprom.c')
| -rw-r--r-- | drivers/parisc/eisa_eeprom.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/parisc/eisa_eeprom.c b/drivers/parisc/eisa_eeprom.c index 86e9c84a965e..5ac207932fd7 100644 --- a/drivers/parisc/eisa_eeprom.c +++ b/drivers/parisc/eisa_eeprom.c @@ -24,6 +24,7 @@ #include <linux/kernel.h> #include <linux/miscdevice.h> #include <linux/slab.h> +#include <linux/smp_lock.h> #include <linux/fs.h> #include <asm/io.h> #include <asm/uaccess.h> @@ -83,6 +84,8 @@ static int eisa_eeprom_ioctl(struct inode *inode, struct file *file, static int eisa_eeprom_open(struct inode *inode, struct file *file) { + cycle_kernel_lock(); + if (file->f_mode & 2) return -EINVAL; |