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authorMarkus Elfring <elfring@users.sourceforge.net>2017-08-28 06:50:28 -0400
committerMauro Carvalho Chehab <mchehab@s-opensource.com>2017-09-23 08:20:57 -0400
commitaf28c99628ebfbdc3fff3d92c7044d3a51b7ccea (patch)
treeff56a13fbd5ed6c2bb20a746464fd49fb0199c48 /drivers/media/usb/zr364xx/zr364xx.c
parent2d3da59ff163b2aa805de0fc65ba933a735b00cd (diff)
downloadlinux-af28c99628ebfbdc3fff3d92c7044d3a51b7ccea.tar.bz2
media: drivers: Adjust checks for null pointers
The script “checkpatch.pl” pointed information out like the following. Comparison to NULL could be written !… Thus fix the affected source code places. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Diffstat (limited to 'drivers/media/usb/zr364xx/zr364xx.c')
-rw-r--r--drivers/media/usb/zr364xx/zr364xx.c22
1 files changed, 11 insertions, 11 deletions
diff --git a/drivers/media/usb/zr364xx/zr364xx.c b/drivers/media/usb/zr364xx/zr364xx.c
index b3d05027bd9a..1d888661fd03 100644
--- a/drivers/media/usb/zr364xx/zr364xx.c
+++ b/drivers/media/usb/zr364xx/zr364xx.c
@@ -385,9 +385,9 @@ static int buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
vb);
int rc;
- DBG("%s, field=%d, fmt name = %s\n", __func__, field, cam->fmt != NULL ?
- cam->fmt->name : "");
- if (cam->fmt == NULL)
+ DBG("%s, field=%d, fmt name = %s\n", __func__, field,
+ cam->fmt ? cam->fmt->name : "");
+ if (!cam->fmt)
return -EINVAL;
buf->vb.size = cam->width * cam->height * (cam->fmt->depth >> 3);
@@ -787,7 +787,7 @@ static int zr364xx_vidioc_try_fmt_vid_cap(struct file *file, void *priv,
struct zr364xx_camera *cam = video_drvdata(file);
char pixelformat_name[5];
- if (cam == NULL)
+ if (!cam)
return -ENODEV;
if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_JPEG) {
@@ -817,7 +817,7 @@ static int zr364xx_vidioc_g_fmt_vid_cap(struct file *file, void *priv,
{
struct zr364xx_camera *cam;
- if (file == NULL)
+ if (!file)
return -ENODEV;
cam = video_drvdata(file);
@@ -979,13 +979,13 @@ static void read_pipe_completion(struct urb *purb)
pipe_info = purb->context;
_DBG("%s %p, status %d\n", __func__, purb, purb->status);
- if (pipe_info == NULL) {
+ if (!pipe_info) {
printk(KERN_ERR KBUILD_MODNAME ": no context!\n");
return;
}
cam = pipe_info->cam;
- if (cam == NULL) {
+ if (!cam) {
printk(KERN_ERR KBUILD_MODNAME ": no context!\n");
return;
}
@@ -1069,7 +1069,7 @@ static void zr364xx_stop_readpipe(struct zr364xx_camera *cam)
{
struct zr364xx_pipeinfo *pipe_info;
- if (cam == NULL) {
+ if (!cam) {
printk(KERN_ERR KBUILD_MODNAME ": invalid device\n");
return;
}
@@ -1273,7 +1273,7 @@ static int zr364xx_mmap(struct file *file, struct vm_area_struct *vma)
struct zr364xx_camera *cam = video_drvdata(file);
int ret;
- if (cam == NULL) {
+ if (!cam) {
DBG("%s: cam == NULL\n", __func__);
return -ENODEV;
}
@@ -1357,7 +1357,7 @@ static int zr364xx_board_init(struct zr364xx_camera *cam)
pipe->transfer_buffer = kzalloc(pipe->transfer_size,
GFP_KERNEL);
- if (pipe->transfer_buffer == NULL) {
+ if (!pipe->transfer_buffer) {
DBG("out of memory!\n");
return -ENOMEM;
}
@@ -1373,7 +1373,7 @@ static int zr364xx_board_init(struct zr364xx_camera *cam)
DBG("valloc %p, idx %lu, pdata %p\n",
&cam->buffer.frame[i], i,
cam->buffer.frame[i].lpvbits);
- if (cam->buffer.frame[i].lpvbits == NULL) {
+ if (!cam->buffer.frame[i].lpvbits) {
printk(KERN_INFO KBUILD_MODNAME ": out of memory. Using less frames\n");
break;
}