Merge branch 'linus' into cpus4096

[pandora-kernel.git] / drivers / isdn / i4l / isdn_common.c

diff --git a/drivers/isdn/i4l/isdn_common.c b/drivers/isdn/i4l/isdn_common.c
index d4ad699..7188c59 100644 (file)
--- a/drivers/isdn/i4l/isdn_common.c
+++ b/drivers/isdn/i4l/isdn_common.c
@@ -1732,7 +1732,7 @@ isdn_open(struct inode *ino, struct file *filep)
        int chidx;
        int retval = -ENODEV;
 
-
+       lock_kernel();
        if (minor == ISDN_MINOR_STATUS) {
                infostruct *p;
 
@@ -1783,6 +1783,7 @@ isdn_open(struct inode *ino, struct file *filep)
 #endif
  out:
        nonseekable_open(ino, filep);
+       unlock_kernel();
        return retval;
 }
 
@@ -1924,7 +1925,7 @@ isdn_free_channel(int di, int ch, int usage)
 
        if ((di < 0) || (ch < 0)) {
                printk(KERN_WARNING "%s: called with invalid drv(%d) or channel(%d)\n",
-                       __FUNCTION__, di, ch);
+                       __func__, di, ch);
                return;
        }
        for (i = 0; i < ISDN_MAX_CHANNELS; i++)
@@ -1977,8 +1978,10 @@ isdn_writebuf_stub(int drvidx, int chan, const u_char __user * buf, int len)
        if (!skb)
                return -ENOMEM;
        skb_reserve(skb, hl);
-       if (copy_from_user(skb_put(skb, len), buf, len))
+       if (copy_from_user(skb_put(skb, len), buf, len)) {
+               dev_kfree_skb(skb);
                return -EFAULT;
+       }
        ret = dev->drv[drvidx]->interface->writebuf_skb(drvidx, chan, 1, skb);
        if (ret <= 0)
                dev_kfree_skb(skb);