+ rapidio-adjust-12-checks-for-null-pointers.patch added to -mm tree

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The patch titled
     Subject: rapidio: adjust 12 checks for null pointers
has been added to the -mm tree.  Its filename is
     rapidio-adjust-12-checks-for-null-pointers.patch

This patch should soon appear at
    http://ozlabs.org/~akpm/mmots/broken-out/rapidio-adjust-12-checks-for-null-pointers.patch
and later at
    http://ozlabs.org/~akpm/mmotm/broken-out/rapidio-adjust-12-checks-for-null-pointers.patch

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------------------------------------------------------
From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
Subject: rapidio: adjust 12 checks for null pointers

checkpatch pointed information out like the following.

Comparison to NULL could be written ...

Thus fix the affected source code places.

Link: http://lkml.kernel.org/r/739f9f1c-3ebe-c21b-c5e2-31976cfbc0ee@xxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
Cc: Alexandre Bounine <alexandre.bounine@xxxxxxx>
Cc: Matt Porter <mporter@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 drivers/rapidio/rio.c |   18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff -puN drivers/rapidio/rio.c~rapidio-adjust-12-checks-for-null-pointers drivers/rapidio/rio.c
--- a/drivers/rapidio/rio.c~rapidio-adjust-12-checks-for-null-pointers
+++ a/drivers/rapidio/rio.c
@@ -243,7 +243,7 @@ int rio_request_inb_mbox(struct rio_mpor
 	int rc = -ENOSYS;
 	struct resource *res;
 
-	if (mport->ops->open_inb_mbox == NULL)
+	if (!mport->ops->open_inb_mbox)
 		goto out;
 
 	res = kzalloc(sizeof(struct resource), GFP_KERNEL);
@@ -326,7 +326,7 @@ int rio_request_outb_mbox(struct rio_mpo
 	int rc = -ENOSYS;
 	struct resource *res;
 
-	if (mport->ops->open_outb_mbox == NULL)
+	if (!mport->ops->open_outb_mbox)
 		goto out;
 
 	res = kzalloc(sizeof(struct resource), GFP_KERNEL);
@@ -632,7 +632,7 @@ int rio_request_inb_pwrite(struct rio_de
 	int rc = 0;
 
 	spin_lock(&rio_global_list_lock);
-	if (rdev->pwcback != NULL)
+	if (rdev->pwcback)
 		rc = -ENOMEM;
 	else
 		rdev->pwcback = pwcback;
@@ -975,7 +975,7 @@ rio_chk_dev_route(struct rio_dev *rdev,
 		rdev = rdev->prev;
 	}
 
-	if (prev == NULL)
+	if (!prev)
 		goto err_out;
 
 	p_port = prev->rswitch->route_table[rdev->destid];
@@ -1054,7 +1054,7 @@ rio_get_input_status(struct rio_dev *rde
 		RIO_MNT_REQ_CMD_IS);
 
 	/* Exit if the response is not expected */
-	if (lnkresp == NULL)
+	if (!lnkresp)
 		return 0;
 
 	checkcount = 3;
@@ -1696,7 +1696,7 @@ int rio_route_add_entry(struct rio_dev *
 
 	spin_lock(&rdev->rswitch->lock);
 
-	if (ops == NULL || ops->add_entry == NULL) {
+	if (!ops || !ops->add_entry) {
 		rc = rio_std_route_add_entry(rdev->net->hport, rdev->destid,
 					     rdev->hopcount, table,
 					     route_destid, route_port);
@@ -1749,7 +1749,7 @@ int rio_route_get_entry(struct rio_dev *
 
 	spin_lock(&rdev->rswitch->lock);
 
-	if (ops == NULL || ops->get_entry == NULL) {
+	if (!ops || !ops->get_entry) {
 		rc = rio_std_route_get_entry(rdev->net->hport, rdev->destid,
 					     rdev->hopcount, table,
 					     route_destid, route_port);
@@ -1797,7 +1797,7 @@ int rio_route_clr_table(struct rio_dev *
 
 	spin_lock(&rdev->rswitch->lock);
 
-	if (ops == NULL || ops->clr_table == NULL) {
+	if (!ops || !ops->clr_table) {
 		rc = rio_std_route_clr_table(rdev->net->hport, rdev->destid,
 					     rdev->hopcount, table);
 	} else if (try_module_get(ops->owner)) {
@@ -1889,7 +1889,7 @@ struct dma_async_tx_descriptor *rio_dma_
 {
 	struct rio_dma_ext rio_ext;
 
-	if (dchan->device->device_prep_slave_sg == NULL) {
+	if (!dchan->device->device_prep_slave_sg) {
 		pr_err("%s: prep_rio_sg == NULL\n", __func__);
 		return NULL;
 	}
_

Patches currently in -mm which might be from elfring@xxxxxxxxxxxxxxxxxxxxx are

rapidio-delete-an-error-message-for-a-failed-memory-allocation-in-rio_init_mports.patch
rapidio-adjust-12-checks-for-null-pointers.patch
rapidio-adjust-five-function-calls-together-with-a-variable-assignment.patch
rapidio-improve-a-size-determination-in-five-functions.patch
rapidio-delete-an-unnecessary-variable-initialisation-in-three-functions.patch
rapidio-return-an-error-code-only-as-a-constant-in-two-functions.patch
rapidio-move-12-export_symbol_gpl-calls-to-function-implementations.patch

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