1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/telephony/ixj.c b/drivers/telephony/ixj.c
index b53deee25d74..b1e469983b1d 100644
--- a/drivers/telephony/ixj.c
+++ b/drivers/telephony/ixj.c
@@ -257,7 +257,7 @@
 #include <linux/fs.h>           /* everything... */
 #include <linux/errno.h>        /* error codes */
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
+#include <linux/mutex.h>
 #include <linux/mm.h>
 #include <linux/ioport.h>
 #include <linux/interrupt.h>
@@ -277,6 +277,7 @@
 #define TYPE(inode) (iminor(inode) >> 4)
 #define NUM(inode) (iminor(inode) & 0xf)
 
+static DEFINE_MUTEX(ixj_mutex);
 static int ixjdebug;
 static int hertz = HZ;
 static int samplerate = 100;
@@ -6655,9 +6656,9 @@ static long do_ixj_ioctl(struct file *file_p, unsigned int cmd, unsigned long ar
 static long ixj_ioctl(struct file *file_p, unsigned int cmd, unsigned long arg)
 {
         long ret;
-        lock_kernel();
+        mutex_lock(&ixj_mutex);
         ret = do_ixj_ioctl(file_p, cmd, arg);
-        unlock_kernel();
+        mutex_unlock(&ixj_mutex);
         return ret;
 }