[PATCH] kfree cleanup: drivers/isdn

This is the drivers/isdn/ part of the big kfree cleanup patch.

Remove pointless checks for NULL prior to calling kfree() in drivers/isdn/.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Acked-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 files changed, 60 insertions, 120 deletions

diff --git a/drivers/isdn/hisax/avm_pci.c b/drivers/isdn/hisax/avm_pci.c
index 625799a..5d8ee73 100644
--- a/drivers/isdn/hisax/avm_pci.c
+++ b/drivers/isdn/hisax/avm_pci.c
@@ -552,14 +552,10 @@ close_hdlcstate(struct BCState *bcs)
 {
 	modehdlc(bcs, 0, 0);
 	if (test_and_clear_bit(BC_FLG_INIT, &bcs->Flag)) {
-		if (bcs->hw.hdlc.rcvbuf) {
-			kfree(bcs->hw.hdlc.rcvbuf);
-			bcs->hw.hdlc.rcvbuf = NULL;
-		}
-		if (bcs->blog) {
-			kfree(bcs->blog);
-			bcs->blog = NULL;
-		}
+		kfree(bcs->hw.hdlc.rcvbuf);
+		bcs->hw.hdlc.rcvbuf = NULL;
+		kfree(bcs->blog);
+		bcs->blog = NULL;
 		skb_queue_purge(&bcs->rqueue);
 		skb_queue_purge(&bcs->squeue);
 		if (bcs->tx_skb) {
diff --git a/drivers/isdn/hisax/avma1_cs.c b/drivers/isdn/hisax/avma1_cs.c
index 0e22991..5f5a5ae7 100644
--- a/drivers/isdn/hisax/avma1_cs.c
+++ b/drivers/isdn/hisax/avma1_cs.c
@@ -236,9 +236,7 @@ static void avma1cs_detach(dev_link_t *link)
     
     /* Unlink device structure, free pieces */
     *linkp = link->next;
-    if (link->priv) {
-	kfree(link->priv);
-    }
+    kfree(link->priv);
     kfree(link);
     
 } /* avma1cs_detach */
diff --git a/drivers/isdn/hisax/config.c b/drivers/isdn/hisax/config.c
index fbaab43..8159bce 100644
--- a/drivers/isdn/hisax/config.c
+++ b/drivers/isdn/hisax/config.c
@@ -787,8 +787,7 @@ static void ll_unload(struct IsdnCardState *cs)
 	ic.command = ISDN_STAT_UNLOAD;
 	ic.driver = cs->myid;
 	cs->iif.statcallb(&ic);
-	if (cs->status_buf)
-		kfree(cs->status_buf);
+	kfree(cs->status_buf);
 	cs->status_read = NULL;
 	cs->status_write = NULL;
 	cs->status_end = NULL;
@@ -807,10 +806,8 @@ static void closecard(int cardnr)
 
 	skb_queue_purge(&csta->rq);
 	skb_queue_purge(&csta->sq);
-	if (csta->rcvbuf) {
-		kfree(csta->rcvbuf);
-		csta->rcvbuf = NULL;
-	}
+	kfree(csta->rcvbuf);
+	csta->rcvbuf = NULL;
 	if (csta->tx_skb) {
 		dev_kfree_skb(csta->tx_skb);
 		csta->tx_skb = NULL;
diff --git a/drivers/isdn/hisax/hfc_2bds0.c b/drivers/isdn/hisax/hfc_2bds0.c
index 7cf8779..637a261 100644
--- a/drivers/isdn/hisax/hfc_2bds0.c
+++ b/drivers/isdn/hisax/hfc_2bds0.c
@@ -1052,18 +1052,12 @@ init2bds0(struct IsdnCardState *cs)
 void
 release2bds0(struct IsdnCardState *cs)
 {
-	if (cs->bcs[0].hw.hfc.send) {
-		kfree(cs->bcs[0].hw.hfc.send);
-		cs->bcs[0].hw.hfc.send = NULL;
-	}
-	if (cs->bcs[1].hw.hfc.send) {
-		kfree(cs->bcs[1].hw.hfc.send);
-		cs->bcs[1].hw.hfc.send = NULL;
-	}
-	if (cs->hw.hfcD.send) {
-		kfree(cs->hw.hfcD.send);
-		cs->hw.hfcD.send = NULL;
-	}
+	kfree(cs->bcs[0].hw.hfc.send);
+	cs->bcs[0].hw.hfc.send = NULL;
+	kfree(cs->bcs[1].hw.hfc.send);
+	cs->bcs[1].hw.hfc.send = NULL;
+	kfree(cs->hw.hfcD.send);
+	cs->hw.hfcD.send = NULL;
 }
 
 void
diff --git a/drivers/isdn/hisax/hfc_2bs0.c b/drivers/isdn/hisax/hfc_2bs0.c
index f978a5a..c964539 100644
--- a/drivers/isdn/hisax/hfc_2bs0.c
+++ b/drivers/isdn/hisax/hfc_2bs0.c
@@ -582,12 +582,8 @@ inithfc(struct IsdnCardState *cs)
 void
 releasehfc(struct IsdnCardState *cs)
 {
-	if (cs->bcs[0].hw.hfc.send) {
-		kfree(cs->bcs[0].hw.hfc.send);
-		cs->bcs[0].hw.hfc.send = NULL;
-	}
-	if (cs->bcs[1].hw.hfc.send) {
-		kfree(cs->bcs[1].hw.hfc.send);
-		cs->bcs[1].hw.hfc.send = NULL;
-	}
+	kfree(cs->bcs[0].hw.hfc.send);
+	cs->bcs[0].hw.hfc.send = NULL;
+	kfree(cs->bcs[1].hw.hfc.send);
+	cs->bcs[1].hw.hfc.send = NULL;
 }
diff --git a/drivers/isdn/hisax/hscx.c b/drivers/isdn/hisax/hscx.c
index 66dbaee..c8f9951 100644
--- a/drivers/isdn/hisax/hscx.c
+++ b/drivers/isdn/hisax/hscx.c
@@ -156,14 +156,10 @@ close_hscxstate(struct BCState *bcs)
 {
 	modehscx(bcs, 0, bcs->channel);
 	if (test_and_clear_bit(BC_FLG_INIT, &bcs->Flag)) {
-		if (bcs->hw.hscx.rcvbuf) {
-			kfree(bcs->hw.hscx.rcvbuf);
-			bcs->hw.hscx.rcvbuf = NULL;
-		}
-		if (bcs->blog) {
-			kfree(bcs->blog);
-			bcs->blog = NULL;
-		}
+		kfree(bcs->hw.hscx.rcvbuf);
+		bcs->hw.hscx.rcvbuf = NULL;
+		kfree(bcs->blog);
+		bcs->blog = NULL;
 		skb_queue_purge(&bcs->rqueue);
 		skb_queue_purge(&bcs->squeue);
 		if (bcs->tx_skb) {
diff --git a/drivers/isdn/hisax/icc.c b/drivers/isdn/hisax/icc.c
index b4ca585..c615752 100644
--- a/drivers/isdn/hisax/icc.c
+++ b/drivers/isdn/hisax/icc.c
@@ -571,14 +571,10 @@ setstack_icc(struct PStack *st, struct IsdnCardState *cs)
 
 static void
 DC_Close_icc(struct IsdnCardState *cs) {
-	if (cs->dc.icc.mon_rx) {
-		kfree(cs->dc.icc.mon_rx);
-		cs->dc.icc.mon_rx = NULL;
-	}
-	if (cs->dc.icc.mon_tx) {
-		kfree(cs->dc.icc.mon_tx);
-		cs->dc.icc.mon_tx = NULL;
-	}
+	kfree(cs->dc.icc.mon_rx);
+	cs->dc.icc.mon_rx = NULL;
+	kfree(cs->dc.icc.mon_tx);
+	cs->dc.icc.mon_tx = NULL;
 }
 
 static void
diff --git a/drivers/isdn/hisax/ipacx.c b/drivers/isdn/hisax/ipacx.c
index efba2f4..2e9afae 100644
--- a/drivers/isdn/hisax/ipacx.c
+++ b/drivers/isdn/hisax/ipacx.c
@@ -762,14 +762,10 @@ bch_close_state(struct BCState *bcs)
 {
 	bch_mode(bcs, 0, bcs->channel);
 	if (test_and_clear_bit(BC_FLG_INIT, &bcs->Flag)) {
-		if (bcs->hw.hscx.rcvbuf) {
-			kfree(bcs->hw.hscx.rcvbuf);
-			bcs->hw.hscx.rcvbuf = NULL;
-		}
-		if (bcs->blog) {
-			kfree(bcs->blog);
-			bcs->blog = NULL;
-		}
+		kfree(bcs->hw.hscx.rcvbuf);
+		bcs->hw.hscx.rcvbuf = NULL;
+		kfree(bcs->blog);
+		bcs->blog = NULL;
 		skb_queue_purge(&bcs->rqueue);
 		skb_queue_purge(&bcs->squeue);
 		if (bcs->tx_skb) {
diff --git a/drivers/isdn/hisax/isac.c b/drivers/isdn/hisax/isac.c
index 85e063a..565b789 100644
--- a/drivers/isdn/hisax/isac.c
+++ b/drivers/isdn/hisax/isac.c
@@ -570,15 +570,12 @@ setstack_isac(struct PStack *st, struct IsdnCardState *cs)
 }
 
 static void
-DC_Close_isac(struct IsdnCardState *cs) {
-	if (cs->dc.isac.mon_rx) {
-		kfree(cs->dc.isac.mon_rx);
-		cs->dc.isac.mon_rx = NULL;
-	}
-	if (cs->dc.isac.mon_tx) {
-		kfree(cs->dc.isac.mon_tx);
-		cs->dc.isac.mon_tx = NULL;
-	}
+DC_Close_isac(struct IsdnCardState *cs)
+{
+	kfree(cs->dc.isac.mon_rx);
+	cs->dc.isac.mon_rx = NULL;
+	kfree(cs->dc.isac.mon_tx);
+	cs->dc.isac.mon_tx = NULL;
 }
 
 static void
diff --git a/drivers/isdn/hisax/isar.c b/drivers/isdn/hisax/isar.c
index 642a87c..674af67 100644
--- a/drivers/isdn/hisax/isar.c
+++ b/drivers/isdn/hisax/isar.c
@@ -1688,10 +1688,8 @@ close_isarstate(struct BCState *bcs)
 {
 	modeisar(bcs, 0, bcs->channel);
 	if (test_and_clear_bit(BC_FLG_INIT, &bcs->Flag)) {
-		if (bcs->hw.isar.rcvbuf) {
-			kfree(bcs->hw.isar.rcvbuf);
-			bcs->hw.isar.rcvbuf = NULL;
-		}
+		kfree(bcs->hw.isar.rcvbuf);
+		bcs->hw.isar.rcvbuf = NULL;
 		skb_queue_purge(&bcs->rqueue);
 		skb_queue_purge(&bcs->squeue);
 		if (bcs->tx_skb) {
diff --git a/drivers/isdn/hisax/jade.c b/drivers/isdn/hisax/jade.c
index 363ae31..2659fec 100644
--- a/drivers/isdn/hisax/jade.c
+++ b/drivers/isdn/hisax/jade.c
@@ -195,14 +195,10 @@ close_jadestate(struct BCState *bcs)
 {
     modejade(bcs, 0, bcs->channel);
     if (test_and_clear_bit(BC_FLG_INIT, &bcs->Flag)) {
-	if (bcs->hw.hscx.rcvbuf) {
-		kfree(bcs->hw.hscx.rcvbuf);
-		bcs->hw.hscx.rcvbuf = NULL;
-	}
-	if (bcs->blog) {
-		kfree(bcs->blog);
-		bcs->blog = NULL;
-	}
+	kfree(bcs->hw.hscx.rcvbuf);
+	bcs->hw.hscx.rcvbuf = NULL;
+	kfree(bcs->blog);
+	bcs->blog = NULL;
 	skb_queue_purge(&bcs->rqueue);
 	skb_queue_purge(&bcs->squeue);
 	if (bcs->tx_skb) {
diff --git a/drivers/isdn/hisax/netjet.c b/drivers/isdn/hisax/netjet.c
index 94da03c..47a47ef 100644
--- a/drivers/isdn/hisax/netjet.c
+++ b/drivers/isdn/hisax/netjet.c
@@ -855,14 +855,10 @@ close_tigerstate(struct BCState *bcs)
 {
 	mode_tiger(bcs, 0, bcs->channel);
 	if (test_and_clear_bit(BC_FLG_INIT, &bcs->Flag)) {
-		if (bcs->hw.tiger.rcvbuf) {
-			kfree(bcs->hw.tiger.rcvbuf);
-			bcs->hw.tiger.rcvbuf = NULL;
-		}
-		if (bcs->hw.tiger.sendbuf) {
-			kfree(bcs->hw.tiger.sendbuf);
-			bcs->hw.tiger.sendbuf = NULL;
-		}
+		kfree(bcs->hw.tiger.rcvbuf);
+		bcs->hw.tiger.rcvbuf = NULL;
+		kfree(bcs->hw.tiger.sendbuf);
+		bcs->hw.tiger.sendbuf = NULL;
 		skb_queue_purge(&bcs->rqueue);
 		skb_queue_purge(&bcs->squeue);
 		if (bcs->tx_skb) {
@@ -967,20 +963,12 @@ inittiger(struct IsdnCardState *cs)
 static void
 releasetiger(struct IsdnCardState *cs)
 {
-	if (cs->bcs[0].hw.tiger.send) {
-		kfree(cs->bcs[0].hw.tiger.send);
-		cs->bcs[0].hw.tiger.send = NULL;
-	}
-	if (cs->bcs[1].hw.tiger.send) {
-		cs->bcs[1].hw.tiger.send = NULL;
-	}
-	if (cs->bcs[0].hw.tiger.rec) {
-		kfree(cs->bcs[0].hw.tiger.rec);
-		cs->bcs[0].hw.tiger.rec = NULL;
-	}
-	if (cs->bcs[1].hw.tiger.rec) {
-		cs->bcs[1].hw.tiger.rec = NULL;
-	}
+	kfree(cs->bcs[0].hw.tiger.send);
+	cs->bcs[0].hw.tiger.send = NULL;
+	cs->bcs[1].hw.tiger.send = NULL;
+	kfree(cs->bcs[0].hw.tiger.rec);
+	cs->bcs[0].hw.tiger.rec = NULL;
+	cs->bcs[1].hw.tiger.rec = NULL;
 }
 
 void
diff --git a/drivers/isdn/hisax/st5481_usb.c b/drivers/isdn/hisax/st5481_usb.c
index 89fbeb5..b096b64 100644
--- a/drivers/isdn/hisax/st5481_usb.c
+++ b/drivers/isdn/hisax/st5481_usb.c
@@ -335,14 +335,12 @@ void st5481_release_usb(struct st5481_adapter *adapter)
 
 	// Stop and free Control and Interrupt URBs
 	usb_kill_urb(ctrl->urb);
-	if (ctrl->urb->transfer_buffer)
-		kfree(ctrl->urb->transfer_buffer);
+	kfree(ctrl->urb->transfer_buffer);
 	usb_free_urb(ctrl->urb);
 	ctrl->urb = NULL;
 
 	usb_kill_urb(intr->urb);
-	if (intr->urb->transfer_buffer)
-		kfree(intr->urb->transfer_buffer);
+	kfree(intr->urb->transfer_buffer);
 	usb_free_urb(intr->urb);
 	ctrl->urb = NULL;
 }
@@ -457,8 +455,7 @@ st5481_setup_isocpipes(struct urb* urb[2], struct usb_device *dev,
  err:
 	for (j = 0; j < 2; j++) {
 		if (urb[j]) {
-			if (urb[j]->transfer_buffer)
-				kfree(urb[j]->transfer_buffer);
+			kfree(urb[j]->transfer_buffer);
 			urb[j]->transfer_buffer = NULL;
 			usb_free_urb(urb[j]);
 			urb[j] = NULL;
@@ -473,8 +470,7 @@ void st5481_release_isocpipes(struct urb* urb[2])
 
 	for (j = 0; j < 2; j++) {
 		usb_kill_urb(urb[j]);
-		if (urb[j]->transfer_buffer)
-			kfree(urb[j]->transfer_buffer);			
+		kfree(urb[j]->transfer_buffer);
 		usb_free_urb(urb[j]);
 		urb[j] = NULL;
 	}
diff --git a/drivers/isdn/hisax/w6692.c b/drivers/isdn/hisax/w6692.c
index 7baf8e4..0352ee5 100644
--- a/drivers/isdn/hisax/w6692.c
+++ b/drivers/isdn/hisax/w6692.c
@@ -819,14 +819,10 @@ close_w6692state(struct BCState *bcs)
 {
 	W6692Bmode(bcs, 0, bcs->channel);
 	if (test_and_clear_bit(BC_FLG_INIT, &bcs->Flag)) {
-		if (bcs->hw.w6692.rcvbuf) {
-			kfree(bcs->hw.w6692.rcvbuf);
-			bcs->hw.w6692.rcvbuf = NULL;
-		}
-		if (bcs->blog) {
-			kfree(bcs->blog);
-			bcs->blog = NULL;
-		}
+		kfree(bcs->hw.w6692.rcvbuf);
+		bcs->hw.w6692.rcvbuf = NULL;
+		kfree(bcs->blog);
+		bcs->blog = NULL;
 		skb_queue_purge(&bcs->rqueue);
 		skb_queue_purge(&bcs->squeue);
 		if (bcs->tx_skb) {