From: Amarjargal Gundjalam Date: Mon, 26 Oct 2015 13:09:27 +0000 (-0700) Subject: staging: media: omap4iss: Fixes NULL comparison X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=9058fc9262057c8f6c17b122b69217cdb4fc4643;p=linux-beck.git staging: media: omap4iss: Fixes NULL comparison This patch fixes the checkpatch issue: CHECK: Comparison to NULL could be written Signed-off-by: Amarjargal Gundjalam Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/media/omap4iss/iss.c b/drivers/staging/media/omap4iss/iss.c index 9bfb725b9986..104fc582b736 100644 --- a/drivers/staging/media/omap4iss/iss.c +++ b/drivers/staging/media/omap4iss/iss.c @@ -151,7 +151,7 @@ int omap4iss_get_external_info(struct iss_pipeline *pipe, ctrl = v4l2_ctrl_find(pipe->external->ctrl_handler, V4L2_CID_PIXEL_RATE); - if (ctrl == NULL) { + if (!ctrl) { dev_warn(iss->dev, "no pixel rate control in subdev %s\n", pipe->external->name); return -EPIPE; @@ -422,7 +422,7 @@ static int iss_pipeline_pm_power_one(struct media_entity *entity, int change) subdev = media_entity_type(entity) == MEDIA_ENT_T_V4L2_SUBDEV ? media_entity_to_v4l2_subdev(entity) : NULL; - if (entity->use_count == 0 && change > 0 && subdev != NULL) { + if (entity->use_count == 0 && change > 0 && subdev) { int ret; ret = v4l2_subdev_call(subdev, core, s_power, 1); @@ -433,7 +433,7 @@ static int iss_pipeline_pm_power_one(struct media_entity *entity, int change) entity->use_count += change; WARN_ON(entity->use_count < 0); - if (entity->use_count == 0 && change < 0 && subdev != NULL) + if (entity->use_count == 0 && change < 0 && subdev) v4l2_subdev_call(subdev, core, s_power, 0); return 0; @@ -590,7 +590,7 @@ static int iss_pipeline_disable(struct iss_pipeline *pipe, break; pad = media_entity_remote_pad(pad); - if (pad == NULL || + if (!pad || media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV) break; @@ -658,7 +658,7 @@ static int iss_pipeline_enable(struct iss_pipeline *pipe, break; pad = media_entity_remote_pad(pad); - if (pad == NULL || + if (!pad || media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV) break; @@ -1050,7 +1050,7 @@ struct iss_device *omap4iss_get(struct iss_device *iss) { struct iss_device *__iss = iss; - if (iss == NULL) + if (!iss) return NULL; mutex_lock(&iss->iss_mutex); @@ -1065,7 +1065,7 @@ struct iss_device *omap4iss_get(struct iss_device *iss) iss_enable_interrupts(iss); out: - if (__iss != NULL) + if (__iss) iss->ref_count++; mutex_unlock(&iss->iss_mutex); @@ -1080,7 +1080,7 @@ out: */ void omap4iss_put(struct iss_device *iss) { - if (iss == NULL) + if (!iss) return; mutex_lock(&iss->iss_mutex); @@ -1142,7 +1142,7 @@ iss_register_subdev_group(struct iss_device *iss, struct v4l2_subdev *sensor = NULL; unsigned int first; - if (board_info->board_info == NULL) + if (!board_info->board_info) return NULL; for (first = 1; board_info->board_info; ++board_info, first = 0) { @@ -1150,7 +1150,7 @@ iss_register_subdev_group(struct iss_device *iss, struct i2c_adapter *adapter; adapter = i2c_get_adapter(board_info->i2c_adapter_id); - if (adapter == NULL) { + if (!adapter) { dev_err(iss->dev, "%s: Unable to get I2C adapter %d for device %s\n", __func__, board_info->i2c_adapter_id, @@ -1160,7 +1160,7 @@ iss_register_subdev_group(struct iss_device *iss, subdev = v4l2_i2c_new_subdev_board(&iss->v4l2_dev, adapter, board_info->board_info, NULL); - if (subdev == NULL) { + if (!subdev) { dev_err(iss->dev, "Unable to register subdev %s\n", board_info->board_info->type); continue; @@ -1228,7 +1228,7 @@ static int iss_register_entities(struct iss_device *iss) unsigned int pad; sensor = iss_register_subdev_group(iss, subdevs->subdevs); - if (sensor == NULL) + if (!sensor) continue; sensor->host_priv = subdevs; @@ -1369,7 +1369,7 @@ static int iss_probe(struct platform_device *pdev) unsigned int i; int ret; - if (pdata == NULL) + if (!pdata) return -EINVAL; iss = devm_kzalloc(&pdev->dev, sizeof(*iss), GFP_KERNEL); @@ -1406,7 +1406,7 @@ static int iss_probe(struct platform_device *pdev) if (ret < 0) goto error; - if (omap4iss_get(iss) == NULL) + if (!omap4iss_get(iss)) goto error; ret = iss_reset(iss); diff --git a/drivers/staging/media/omap4iss/iss_csi2.c b/drivers/staging/media/omap4iss/iss_csi2.c index bc83f8246101..c6e6d47ac57f 100644 --- a/drivers/staging/media/omap4iss/iss_csi2.c +++ b/drivers/staging/media/omap4iss/iss_csi2.c @@ -658,7 +658,7 @@ static void csi2_isr_buffer(struct iss_csi2_device *csi2) * Let video queue operation restart engine if there is an underrun * condition. */ - if (buffer == NULL) + if (!buffer) return; csi2_set_outaddr(csi2, buffer->iss_addr); @@ -979,7 +979,7 @@ static int csi2_get_format(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *format; format = __csi2_get_format(csi2, cfg, fmt->pad, fmt->which); - if (format == NULL) + if (!format) return -EINVAL; fmt->format = *format; @@ -1001,7 +1001,7 @@ static int csi2_set_format(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *format; format = __csi2_get_format(csi2, cfg, fmt->pad, fmt->which); - if (format == NULL) + if (!format) return -EINVAL; csi2_try_format(csi2, cfg, fmt->pad, &fmt->format, fmt->which); diff --git a/drivers/staging/media/omap4iss/iss_ipipe.c b/drivers/staging/media/omap4iss/iss_ipipe.c index f94a59299a83..fcde8a65cc2a 100644 --- a/drivers/staging/media/omap4iss/iss_ipipe.c +++ b/drivers/staging/media/omap4iss/iss_ipipe.c @@ -320,7 +320,7 @@ static int ipipe_get_format(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *format; format = __ipipe_get_format(ipipe, cfg, fmt->pad, fmt->which); - if (format == NULL) + if (!format) return -EINVAL; fmt->format = *format; @@ -344,7 +344,7 @@ static int ipipe_set_format(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *format; format = __ipipe_get_format(ipipe, cfg, fmt->pad, fmt->which); - if (format == NULL) + if (!format) return -EINVAL; ipipe_try_format(ipipe, cfg, fmt->pad, &fmt->format, fmt->which); diff --git a/drivers/staging/media/omap4iss/iss_ipipeif.c b/drivers/staging/media/omap4iss/iss_ipipeif.c index c0da13d55865..fcafdbe25c4c 100644 --- a/drivers/staging/media/omap4iss/iss_ipipeif.c +++ b/drivers/staging/media/omap4iss/iss_ipipeif.c @@ -233,7 +233,7 @@ static void ipipeif_isr_buffer(struct iss_ipipeif_device *ipipeif) ipipeif_write_enable(ipipeif, 0); buffer = omap4iss_video_buffer_next(&ipipeif->video_out); - if (buffer == NULL) + if (!buffer) return; ipipeif_set_outaddr(ipipeif, buffer->iss_addr); @@ -526,7 +526,7 @@ static int ipipeif_get_format(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *format; format = __ipipeif_get_format(ipipeif, cfg, fmt->pad, fmt->which); - if (format == NULL) + if (!format) return -EINVAL; fmt->format = *format; @@ -550,7 +550,7 @@ static int ipipeif_set_format(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *format; format = __ipipeif_get_format(ipipeif, cfg, fmt->pad, fmt->which); - if (format == NULL) + if (!format) return -EINVAL; ipipeif_try_format(ipipeif, cfg, fmt->pad, &fmt->format, fmt->which); diff --git a/drivers/staging/media/omap4iss/iss_resizer.c b/drivers/staging/media/omap4iss/iss_resizer.c index 5030cf3cd34c..8035e01c7eb7 100644 --- a/drivers/staging/media/omap4iss/iss_resizer.c +++ b/drivers/staging/media/omap4iss/iss_resizer.c @@ -274,7 +274,7 @@ static void resizer_isr_buffer(struct iss_resizer_device *resizer) resizer_enable(resizer, 0); buffer = omap4iss_video_buffer_next(&resizer->video_out); - if (buffer == NULL) + if (!buffer) return; resizer_set_outaddr(resizer, buffer->iss_addr); @@ -588,7 +588,7 @@ static int resizer_get_format(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *format; format = __resizer_get_format(resizer, cfg, fmt->pad, fmt->which); - if (format == NULL) + if (!format) return -EINVAL; fmt->format = *format; @@ -612,7 +612,7 @@ static int resizer_set_format(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *format; format = __resizer_get_format(resizer, cfg, fmt->pad, fmt->which); - if (format == NULL) + if (!format) return -EINVAL; resizer_try_format(resizer, cfg, fmt->pad, &fmt->format, fmt->which); diff --git a/drivers/staging/media/omap4iss/iss_video.c b/drivers/staging/media/omap4iss/iss_video.c index 40405d8710a6..a98991a2c7fd 100644 --- a/drivers/staging/media/omap4iss/iss_video.c +++ b/drivers/staging/media/omap4iss/iss_video.c @@ -191,7 +191,7 @@ iss_video_remote_subdev(struct iss_video *video, u32 *pad) remote = media_entity_remote_pad(&video->pad); - if (remote == NULL || + if (!remote || media_entity_type(remote->entity) != MEDIA_ENT_T_V4L2_SUBDEV) return NULL; @@ -241,7 +241,7 @@ __iss_video_get_format(struct iss_video *video, int ret; subdev = iss_video_remote_subdev(video, &pad); - if (subdev == NULL) + if (!subdev) return -EINVAL; memset(&fmt, 0, sizeof(fmt)); @@ -471,7 +471,7 @@ struct iss_buffer *omap4iss_video_buffer_next(struct iss_video *video) return NULL; } - if (video->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && pipe->input != NULL) { + if (video->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && pipe->input) { spin_lock(&pipe->lock); pipe->state &= ~ISS_PIPELINE_STREAM; spin_unlock(&pipe->lock); @@ -624,7 +624,7 @@ iss_video_try_format(struct file *file, void *fh, struct v4l2_format *format) return -EINVAL; subdev = iss_video_remote_subdev(video, &pad); - if (subdev == NULL) + if (!subdev) return -EINVAL; iss_video_pix_to_mbus(&format->fmt.pix, &fmt.format); @@ -806,7 +806,7 @@ iss_video_streamon(struct file *file, void *fh, enum v4l2_buf_type type) pipe->input = far_end; pipe->output = video; } else { - if (far_end == NULL) { + if (!far_end) { ret = -EPIPE; goto err_iss_video_check_format; } @@ -841,7 +841,7 @@ iss_video_streamon(struct file *file, void *fh, enum v4l2_buf_type type) * to the stream on command. In memory-to-memory mode, it will be * started when buffers are queued on both the input and output. */ - if (pipe->input == NULL) { + if (!pipe->input) { unsigned long flags; ret = omap4iss_pipeline_set_stream(pipe, @@ -974,14 +974,14 @@ static int iss_video_open(struct file *file) int ret = 0; handle = kzalloc(sizeof(*handle), GFP_KERNEL); - if (handle == NULL) + if (!handle) return -ENOMEM; v4l2_fh_init(&handle->vfh, &video->video); v4l2_fh_add(&handle->vfh); /* If this is the first user, initialise the pipeline. */ - if (omap4iss_get(video->iss) == NULL) { + if (!omap4iss_get(video->iss)) { ret = -EBUSY; goto done; } @@ -1116,7 +1116,7 @@ int omap4iss_video_init(struct iss_video *video, const char *name) mutex_init(&video->stream_lock); /* Initialize the video device. */ - if (video->ops == NULL) + if (!video->ops) video->ops = &iss_video_dummy_ops; video->video.fops = &iss_video_fops;