staging: fwserial: (coding-style) rewrite comparisons to NULL as "!fifo->data"

Rewrite multiple comparisons to NULL as "!fifo->data"
to fix the last coding style problems of this file.

Signed-off-by: Christian Colic <colic.christian@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/fwserial/dma_fifo.c b/drivers/staging/fwserial/dma_fifo.c
index 7a3347c..4cd3ed3 100644 (file)
--- 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;