parisc-eisa_eeprom: BKL pushdown

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

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;