[PATCH 20/34] [media] DaVinci-VPFE-Capture: Adjust 13 checks for null pointers

From: SF Markus Elfring
Date: Wed Oct 12 2016 - 11:03:17 EST


From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
Date: Wed, 12 Oct 2016 10:46:28 +0200

Convert comparisons with the preprocessor symbol "NULL" to condition checks
without it.

Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
---
drivers/media/platform/davinci/vpfe_capture.c | 25 +++++++++++--------------
1 file changed, 11 insertions(+), 14 deletions(-)

diff --git a/drivers/media/platform/davinci/vpfe_capture.c b/drivers/media/platform/davinci/vpfe_capture.c
index e370400..9da353b 100644
--- a/drivers/media/platform/davinci/vpfe_capture.c
+++ b/drivers/media/platform/davinci/vpfe_capture.c
@@ -229,7 +229,7 @@ int vpfe_register_ccdc_device(struct ccdc_hw_device *dev)
BUG_ON(!dev->hw_ops.getfid);

mutex_lock(&ccdc_lock);
- if (NULL == ccdc_cfg) {
+ if (!ccdc_cfg) {
/*
* TODO. Will this ever happen? if so, we need to fix it.
* Proabably we need to add the request to a linked list and
@@ -265,7 +265,7 @@ EXPORT_SYMBOL(vpfe_register_ccdc_device);
*/
void vpfe_unregister_ccdc_device(struct ccdc_hw_device *dev)
{
- if (NULL == dev) {
+ if (!dev) {
printk(KERN_ERR "invalid ccdc device ptr\n");
return;
}
@@ -469,7 +469,7 @@ static int vpfe_initialize_device(struct vpfe_device *vpfe_dev)

/* now open the ccdc device to initialize it */
mutex_lock(&ccdc_lock);
- if (NULL == ccdc_dev) {
+ if (!ccdc_dev) {
v4l2_err(&vpfe_dev->v4l2_dev, "ccdc device not registered\n");
ret = -ENODEV;
goto unlock;
@@ -582,7 +582,7 @@ static irqreturn_t vpfe_isr(int irq, void *dev_id)
goto clear_intr;

/* only for 6446 this will be applicable */
- if (NULL != ccdc_dev->hw_ops.reset)
+ if (ccdc_dev->hw_ops.reset)
ccdc_dev->hw_ops.reset();

if (field == V4L2_FIELD_NONE) {
@@ -822,7 +822,7 @@ static const struct vpfe_pixel_format *
int temp, found;

vpfe_pix_fmt = vpfe_lookup_pix_format(pixfmt->pixelformat);
- if (NULL == vpfe_pix_fmt) {
+ if (!vpfe_pix_fmt) {
/*
* use current pixel format in the vpfe device. We
* will find this pix format in the table
@@ -965,7 +965,7 @@ static int vpfe_enum_fmt_vid_cap(struct file *file, void *priv,

/* Fill in the information about format */
pix_fmt = vpfe_lookup_pix_format(pix);
- if (NULL != pix_fmt) {
+ if (pix_fmt) {
temp_index = fmt->index;
*fmt = pix_fmt->fmtdesc;
fmt->index = temp_index;
@@ -991,8 +991,7 @@ static int vpfe_s_fmt_vid_cap(struct file *file, void *priv,

/* Check for valid frame format */
pix_fmts = vpfe_check_format(vpfe_dev, &fmt->fmt.pix);
-
- if (NULL == pix_fmts)
+ if (!pix_fmts)
return -EINVAL;

/* store the pixel format in the device object */
@@ -1018,7 +1017,7 @@ static int vpfe_try_fmt_vid_cap(struct file *file, void *priv,
v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_try_fmt_vid_cap\n");

pix_fmts = vpfe_check_format(vpfe_dev, &f->fmt.pix);
- if (NULL == pix_fmts)
+ if (!pix_fmts)
return -EINVAL;
return 0;
}
@@ -1833,7 +1832,7 @@ static int vpfe_probe(struct platform_device *pdev)

vpfe_dev->pdev = &pdev->dev;

- if (NULL == pdev->dev.platform_data) {
+ if (!pdev->dev.platform_data) {
v4l2_err(pdev->dev.driver, "Unable to get vpfe config\n");
ret = -ENODEV;
goto probe_free_dev_mem;
@@ -1841,9 +1840,7 @@ static int vpfe_probe(struct platform_device *pdev)

vpfe_cfg = pdev->dev.platform_data;
vpfe_dev->cfg = vpfe_cfg;
- if (NULL == vpfe_cfg->ccdc ||
- NULL == vpfe_cfg->card_name ||
- NULL == vpfe_cfg->sub_devs) {
+ if (!vpfe_cfg->ccdc || !vpfe_cfg->card_name || !vpfe_cfg->sub_devs) {
v4l2_err(pdev->dev.driver, "null ptr in vpfe_cfg\n");
ret = -ENOENT;
goto probe_free_dev_mem;
@@ -1938,7 +1935,7 @@ static int vpfe_probe(struct platform_device *pdev)
vpfe_dev->sd = kmalloc_array(num_subdevs,
sizeof(*vpfe_dev->sd),
GFP_KERNEL);
- if (NULL == vpfe_dev->sd) {
+ if (!vpfe_dev->sd) {
ret = -ENOMEM;
goto probe_out_video_unregister;
}
--
2.10.1