[media] DaVinci-VPIF-Capture: Adjust ten 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 <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

diff --git a/drivers/media/platform/davinci/vpif_capture.c b/drivers/media/platform/davinci/vpif_capture.c
index 515384b25ea152a8cd796ac0bac07d60fd535453..0c44e2b8443483ede645165e3736e2d8788056b9 100644 (file)
--- a/drivers/media/platform/davinci/vpif_capture.c
+++ b/drivers/media/platform/davinci/vpif_capture.c
@@ -291,10 +291,10 @@ static void vpif_stop_streaming(struct vb2_queue *vq)
                vb2_buffer_done(&common->cur_frm->vb.vb2_buf,
                                VB2_BUF_STATE_ERROR);
        } else {
-               if (common->cur_frm != NULL)
+               if (common->cur_frm)
                        vb2_buffer_done(&common->cur_frm->vb.vb2_buf,
                                        VB2_BUF_STATE_ERROR);
-               if (common->next_frm != NULL)
+               if (common->next_frm)
                        vb2_buffer_done(&common->next_frm->vb.vb2_buf,
                                        VB2_BUF_STATE_ERROR);
        }
@@ -648,7 +648,7 @@ static int vpif_input_to_subdev(
        vpif_dbg(2, debug, "vpif_input_to_subdev\n");
 
        subdev_name = chan_cfg->inputs[input_index].subdev_name;
-       if (subdev_name == NULL)
+       if (!subdev_name)
                return -1;
 
        /* loop through the sub device list to get the sub device info */
@@ -764,7 +764,7 @@ static int vpif_g_std(struct file *file, void *priv, v4l2_std_id *std)
 
        vpif_dbg(2, debug, "vpif_g_std\n");
 
-       if (config->chan_config[ch->channel_id].inputs == NULL)
+       if (!config->chan_config[ch->channel_id].inputs)
                return -ENODATA;
 
        chan_cfg = &config->chan_config[ch->channel_id];
@@ -794,7 +794,7 @@ static int vpif_s_std(struct file *file, void *priv, v4l2_std_id std_id)
 
        vpif_dbg(2, debug, "vpif_s_std\n");
 
-       if (config->chan_config[ch->channel_id].inputs == NULL)
+       if (!config->chan_config[ch->channel_id].inputs)
                return -ENODATA;
 
        chan_cfg = &config->chan_config[ch->channel_id];
@@ -1050,7 +1050,7 @@ vpif_enum_dv_timings(struct file *file, void *priv,
        struct v4l2_input input;
        int ret;
 
-       if (config->chan_config[ch->channel_id].inputs == NULL)
+       if (!config->chan_config[ch->channel_id].inputs)
                return -ENODATA;
 
        chan_cfg = &config->chan_config[ch->channel_id];
@@ -1084,7 +1084,7 @@ vpif_query_dv_timings(struct file *file, void *priv,
        struct v4l2_input input;
        int ret;
 
-       if (config->chan_config[ch->channel_id].inputs == NULL)
+       if (!config->chan_config[ch->channel_id].inputs)
                return -ENODATA;
 
        chan_cfg = &config->chan_config[ch->channel_id];
@@ -1120,7 +1120,7 @@ static int vpif_s_dv_timings(struct file *file, void *priv,
        struct v4l2_input input;
        int ret;
 
-       if (config->chan_config[ch->channel_id].inputs == NULL)
+       if (!config->chan_config[ch->channel_id].inputs)
                return -ENODATA;
 
        chan_cfg = &config->chan_config[ch->channel_id];
@@ -1213,7 +1213,7 @@ static int vpif_g_dv_timings(struct file *file, void *priv,
        struct vpif_capture_chan_config *chan_cfg;
        struct v4l2_input input;
 
-       if (config->chan_config[ch->channel_id].inputs == NULL)
+       if (!config->chan_config[ch->channel_id].inputs)
                return -ENODATA;
 
        chan_cfg = &config->chan_config[ch->channel_id];
@@ -1460,7 +1460,7 @@ static __init int vpif_probe(struct platform_device *pdev)
 
        subdev_count = vpif_obj.config->subdev_count;
        vpif_obj.sd = kcalloc(subdev_count, sizeof(*vpif_obj.sd), GFP_KERNEL);
-       if (vpif_obj.sd == NULL) {
+       if (!vpif_obj.sd) {
                err = -ENOMEM;
                goto vpif_unregister;
        }