X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=drivers%2Fchar%2Fvc_screen.c;h=eebfad2777d29ac9bfd7134eab259c11c7bd5a79;hb=814dae031d08d40d34c0403a54d6e659baf0ae71;hp=83aeedda200cfccc6724be4eaf8ce3c715b1c2d7;hpb=6ec129c3a2f8b38bc37e42348470ccfcb7460146;p=linux-2.6-omap-h63xx.git

diff --git a/drivers/char/vc_screen.c b/drivers/char/vc_screen.c
index 83aeedda200..eebfad2777d 100644
--- a/drivers/char/vc_screen.c
+++ b/drivers/char/vc_screen.c
@@ -34,6 +34,7 @@
 #include <linux/kbd_kern.h>
 #include <linux/console.h>
 #include <linux/device.h>
+#include <linux/smp_lock.h>
 
 #include <asm/uaccess.h>
 #include <asm/byteorder.h>
@@ -460,9 +461,13 @@ static int
 vcs_open(struct inode *inode, struct file *filp)
 {
 	unsigned int currcons = iminor(inode) & 127;
+	int ret = 0;
+	
+	lock_kernel();
 	if(currcons && !vc_cons_allocated(currcons-1))
-		return -ENXIO;
-	return 0;
+		ret = -ENXIO;
+	unlock_kernel();
+	return ret;
 }
 
 static const struct file_operations vcs_fops = {