[PATCH] davinci: vpif_capture: add NULL check on devm_kzalloc return value

[Gustavo A. R. Silva]

Check return value from call to devm_kzalloc() in order to prevent
a NULL pointer dereference.

This issue was detected with the help of Coccinelle.

Fixes: 4a5f8ae50b66 ("[media] davinci: vpif_capture: get subdevs from DT when 
available")
Signed-off-by: Gustavo A. R. Silva <garsi...@embeddedor.com>
---
 drivers/media/platform/davinci/vpif_capture.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/media/platform/davinci/vpif_capture.c 
b/drivers/media/platform/davinci/vpif_capture.c
index a89367a..3879c7c 100644
--- a/drivers/media/platform/davinci/vpif_capture.c
+++ b/drivers/media/platform/davinci/vpif_capture.c
@@ -1550,6 +1550,8 @@ vpif_capture_get_pdata(struct platform_device *pdev)
                                            sizeof(*chan->inputs) *
                                            VPIF_CAPTURE_NUM_CHANNELS,
                                            GFP_KERNEL);
+               if (!chan->inputs)
+                       return NULL;
 
                chan->input_count++;
                chan->inputs[i].input.type = V4L2_INPUT_TYPE_CAMERA;
-- 
2.7.4