X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fsbus%2Fchar%2Fenvctrl.c;h=a408402426f853bf78a21406c975fbf484c0ca8a;hb=9063974cdbc5463528cb6aa60c91bc0267af7bbb;hp=dadabef116b60ea75d935b37254ca53eeff2e09a;hpb=485cf925d8b7a6b3c62fe5f1e167f2d0d4edf32a;p=linux-2.6

diff --git a/drivers/sbus/char/envctrl.c b/drivers/sbus/char/envctrl.c
index dadabef116..a408402426 100644
--- a/drivers/sbus/char/envctrl.c
+++ b/drivers/sbus/char/envctrl.c
@@ -27,6 +27,7 @@
 #include <linux/miscdevice.h>
 #include <linux/kmod.h>
 #include <linux/reboot.h>
+#include <linux/smp_lock.h>
 
 #include <asm/ebus.h>
 #include <asm/uaccess.h>
@@ -694,6 +695,7 @@ envctrl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 static int
 envctrl_open(struct inode *inode, struct file *file)
 {
+	cycle_kernel_lock();
 	file->private_data = NULL;
 	return 0;
 }