isdn: remove some pointless conditionals before kfree_skb()

Remove some pointless conditionals before kfree_skb().

Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 3 insertions, 5 deletions

diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c
index 1b5bf87c4cf4..3e468d2cf730 100644
--- a/drivers/isdn/capi/capi.c
+++ b/drivers/isdn/capi/capi.c
@@ -277,7 +277,7 @@ static void capiminor_free(struct capiminor *mp)
         list_del(&mp->list);
         write_unlock_irqrestore(&capiminor_list_lock, flags);
 
-        if (mp->ttyskb) kfree_skb(mp->ttyskb);
+        kfree_skb(mp->ttyskb);
         mp->ttyskb = NULL;
         skb_queue_purge(&mp->inqueue);
         skb_queue_purge(&mp->outqueue);
diff --git a/drivers/isdn/pcbit/layer2.c b/drivers/isdn/pcbit/layer2.c
index 5ba2a879df14..e075e8d2fce0 100644
--- a/drivers/isdn/pcbit/layer2.c
+++ b/drivers/isdn/pcbit/layer2.c
@@ -347,8 +347,7 @@ pcbit_receive(struct pcbit_dev *dev)
                 if (dev->read_frame) {
                         printk(KERN_DEBUG "pcbit_receive: Type 0 frame and read_frame != NULL\n");
                         /* discard previous queued frame */
-                        if (dev->read_frame->skb)
-                                kfree_skb(dev->read_frame->skb);
+                        kfree_skb(dev->read_frame->skb);
                         kfree(dev->read_frame);
                         dev->read_frame = NULL;
                 }
@@ -601,8 +600,7 @@ pcbit_l2_err_recover(unsigned long data)
         dev->w_busy = dev->r_busy = 1;
 
         if (dev->read_frame) {
-                if (dev->read_frame->skb)
-                        kfree_skb(dev->read_frame->skb);
+                kfree_skb(dev->read_frame->skb);
                 kfree(dev->read_frame);
                 dev->read_frame = NULL;
         }