[PATCH] kfree cleanup: drivers/s390

This is the drivers/s390/ part of the big kfree cleanup patch.

Remove pointless checks for NULL prior to calling kfree() in drivers/s390/.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Acked-by: Cornelia Huck <cohuck@de.ibm.com>
Acked-by: Stefan Bader <Stefan.Bader@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

5 files changed, 19 insertions, 38 deletions

diff --git a/drivers/s390/net/claw.c b/drivers/s390/net/claw.c
index 3092473991a..1a1c3decea7 100644
--- a/drivers/s390/net/claw.c
+++ b/drivers/s390/net/claw.c
@@ -2743,14 +2743,10 @@ probe_error( struct ccwgroup_device *cgdev)
 #endif
         privptr=(struct claw_privbk *)cgdev->dev.driver_data;
 	if (privptr!=NULL) {
-		if (privptr->p_env != NULL) {
-			kfree(privptr->p_env);
-			privptr->p_env=NULL;
-		}
-        	if (privptr->p_mtc_envelope!=NULL) {
-                	kfree(privptr->p_mtc_envelope);
-                	privptr->p_mtc_envelope=NULL;
-        	}
+		kfree(privptr->p_env);
+		privptr->p_env=NULL;
+                kfree(privptr->p_mtc_envelope);
+               	privptr->p_mtc_envelope=NULL;
                 kfree(privptr);
                 privptr=NULL;
         }
@@ -4121,22 +4117,14 @@ claw_remove_device(struct ccwgroup_device *cgdev)
 	if (cgdev->state == CCWGROUP_ONLINE)
 		claw_shutdown_device(cgdev);
 	claw_remove_files(&cgdev->dev);
-	if (priv->p_mtc_envelope!=NULL) {
-                kfree(priv->p_mtc_envelope);
-                priv->p_mtc_envelope=NULL;
-        }
-	if (priv->p_env != NULL) {
-		kfree(priv->p_env);
-		priv->p_env=NULL;
-	}
-	if (priv->channel[0].irb != NULL) {
-		kfree(priv->channel[0].irb);
-		priv->channel[0].irb=NULL;
-	}
-	if (priv->channel[1].irb != NULL) {
-		kfree(priv->channel[1].irb);
-		priv->channel[1].irb=NULL;
-	}
+	kfree(priv->p_mtc_envelope);
+	priv->p_mtc_envelope=NULL;
+	kfree(priv->p_env);
+	priv->p_env=NULL;
+	kfree(priv->channel[0].irb);
+	priv->channel[0].irb=NULL;
+	kfree(priv->channel[1].irb);
+	priv->channel[1].irb=NULL;
 	kfree(priv);
 	cgdev->dev.driver_data=NULL;
 	cgdev->cdev[READ]->dev.driver_data = NULL;
diff --git a/drivers/s390/net/fsm.c b/drivers/s390/net/fsm.c
index 38f50b7129a..24029bd9c7d 100644
--- a/drivers/s390/net/fsm.c
+++ b/drivers/s390/net/fsm.c
@@ -78,8 +78,7 @@ kfree_fsm(fsm_instance *this)
 {
 	if (this) {
 		if (this->f) {
-			if (this->f->jumpmatrix)
-				kfree(this->f->jumpmatrix);
+			kfree(this->f->jumpmatrix);
 			kfree(this->f);
 		}
 		kfree(this);
diff --git a/drivers/s390/net/iucv.c b/drivers/s390/net/iucv.c
index e08e74e1612..df7647c3c10 100644
--- a/drivers/s390/net/iucv.c
+++ b/drivers/s390/net/iucv.c
@@ -447,14 +447,10 @@ static void
 iucv_exit(void)
 {
 	iucv_retrieve_buffer();
-      	if (iucv_external_int_buffer) {
-		kfree(iucv_external_int_buffer);
-		iucv_external_int_buffer = NULL;
-	}
-	if (iucv_param_pool) {
-		kfree(iucv_param_pool);
-		iucv_param_pool = NULL;
-	}
+	kfree(iucv_external_int_buffer);
+	iucv_external_int_buffer = NULL;
+	kfree(iucv_param_pool);
+	iucv_param_pool = NULL;
 	s390_root_dev_unregister(iucv_root);
 	bus_unregister(&iucv_bus);
 	printk(KERN_INFO "IUCV lowlevel driver unloaded\n");
diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c
index 46f34ba93ac..1c8ad2fcad8 100644
--- a/drivers/s390/net/lcs.c
+++ b/drivers/s390/net/lcs.c
@@ -145,8 +145,7 @@ lcs_free_channel(struct lcs_channel *channel)
 
 	LCS_DBF_TEXT(2, setup, "ichfree");
 	for (cnt = 0; cnt < LCS_NUM_BUFFS; cnt++) {
-		if (channel->iob[cnt].data != NULL)
-			kfree(channel->iob[cnt].data);
+		kfree(channel->iob[cnt].data);
 		channel->iob[cnt].data = NULL;
 	}
 }
diff --git a/drivers/s390/net/qeth_eddp.c b/drivers/s390/net/qeth_eddp.c
index f94f1f25eec..011915d5e24 100644
--- a/drivers/s390/net/qeth_eddp.c
+++ b/drivers/s390/net/qeth_eddp.c
@@ -62,8 +62,7 @@ qeth_eddp_free_context(struct qeth_eddp_context *ctx)
 	for (i = 0; i < ctx->num_pages; ++i)
 		free_page((unsigned long)ctx->pages[i]);
 	kfree(ctx->pages);
-	if (ctx->elements != NULL)
-		kfree(ctx->elements);
+	kfree(ctx->elements);
 	kfree(ctx);
 }