linux-kernel - [PATCH v2 1/2] staging: fwserial: Fix pointer comparison to NULL checkpatch problem

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Date:	Tue,  1 Dec 2015 15:18:11 +0530
From:	Rajan Vaja <rajan.vaja@...il.com>
To:	gregkh@...uxfoundation.org
Cc:	carlos@...rcia.org, mahfouz.saif.elyazal@...il.com,
	rodriguez.twister@...il.com, peter@...leysoftware.com,
	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 1/2] staging: fwserial: Fix pointer comparison to NULL checkpatch problem

Fix pointer comparison to NULL problem reported by checkpatch.

Signed-off-by: Rajan Vaja <rajan.vaja@...il.com>
---
 drivers/staging/fwserial/dma_fifo.c |   10 +++++-----
 drivers/staging/fwserial/fwserial.c |    4 ++--
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/fwserial/dma_fifo.c b/drivers/staging/fwserial/dma_fifo.c
index 7a3347c..4cd3ed3 100644
--- a/drivers/staging/fwserial/dma_fifo.c
+++ b/drivers/staging/fwserial/dma_fifo.c
@@ -106,7 +106,7 @@ void dma_fifo_free(struct dma_fifo *fifo)
 {
 	struct dma_pending *pending, *next;

-	if (fifo->data == NULL)
+	if (!fifo->data)
 		return;

 	list_for_each_entry_safe(pending, next, &fifo->pending, link)
@@ -123,7 +123,7 @@ void dma_fifo_reset(struct dma_fifo *fifo)
 {
 	struct dma_pending *pending, *next;

-	if (fifo->data == NULL)
+	if (!fifo->data)
 		return;

 	list_for_each_entry_safe(pending, next, &fifo->pending, link)
@@ -149,7 +149,7 @@ int dma_fifo_in(struct dma_fifo *fifo, const void *src, int n)
 {
 	int ofs, l;

-	if (fifo->data == NULL)
+	if (!fifo->data)
 		return -ENOENT;
 	if (fifo->corrupt)
 		return -ENXIO;
@@ -192,7 +192,7 @@ int dma_fifo_out_pend(struct dma_fifo *fifo, struct dma_pending *pended)
 {
 	unsigned len, n, ofs, l, limit;

-	if (fifo->data == NULL)
+	if (!fifo->data)
 		return -ENOENT;
 	if (fifo->corrupt)
 		return -ENXIO;
@@ -252,7 +252,7 @@ int dma_fifo_out_complete(struct dma_fifo *fifo, struct dma_pending *complete)
 {
 	struct dma_pending *pending, *next, *tmp;

-	if (fifo->data == NULL)
+	if (!fifo->data)
 		return -ENOENT;
 	if (fifo->corrupt)
 		return -ENXIO;
diff --git a/drivers/staging/fwserial/fwserial.c b/drivers/staging/fwserial/fwserial.c
index b3ea4bb..38ba145 100644
--- a/drivers/staging/fwserial/fwserial.c
+++ b/drivers/staging/fwserial/fwserial.c
@@ -1701,7 +1701,7 @@ static void fwserial_virt_plug_complete(struct fwtty_peer *peer,
 	dma_fifo_change_tx_limit(&port->tx_fifo, port->max_payload);
 	spin_unlock_bh(&peer->port->lock);

-	if (port->port.console && port->fwcon_ops->notify != NULL)
+	if (port->port.console && port->fwcon_ops->notify)
 		(*port->fwcon_ops->notify)(FWCON_NOTIFY_ATTACH, port->con_data);

 	fwtty_info(&peer->unit, "peer (guid:%016llx) connected on %s\n",
@@ -1808,7 +1808,7 @@ static void fwserial_release_port(struct fwtty_port *port, bool reset)
 	RCU_INIT_POINTER(port->peer, NULL);
 	spin_unlock_bh(&port->lock);

-	if (port->port.console && port->fwcon_ops->notify != NULL)
+	if (port->port.console && port->fwcon_ops->notify)
 		(*port->fwcon_ops->notify)(FWCON_NOTIFY_DETACH, port->con_data);
 }

--
1.7.9.5

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