V4L/DVB: V4L - vpfe capture - fix for kernel crash
As part of upstream merge, set_params() function was removed from isif.c.
This requires removal of BUG_ON() and check for set_params ptr in
vpfe_capture.c. Without this kernel crash dump is seen while bootup on DM365
Also made following changes:-
1) converted error messages to debug messages since it is not right to flood
the console with error messages for user mistakes.
2) returns -EINVAL if ioctl is not supported
Signed-off-by: Muralidharan Karicheri <m-karicheri2@ti.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/davinci/vpfe_capture.c b/drivers/media/video/davinci/vpfe_capture.c
index 5512864..398dbe7 100644
--- a/drivers/media/video/davinci/vpfe_capture.c
+++ b/drivers/media/video/davinci/vpfe_capture.c
@@ -223,7 +223,6 @@
BUG_ON(!dev->hw_ops.get_frame_format);
BUG_ON(!dev->hw_ops.get_pixel_format);
BUG_ON(!dev->hw_ops.set_pixel_format);
- BUG_ON(!dev->hw_ops.set_params);
BUG_ON(!dev->hw_ops.set_image_window);
BUG_ON(!dev->hw_ops.get_image_window);
BUG_ON(!dev->hw_ops.get_line_length);
@@ -1689,11 +1688,12 @@
struct vpfe_device *vpfe_dev = video_drvdata(file);
int ret = 0;
- v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_param_handler\n");
+ v4l2_dbg(2, debug, &vpfe_dev->v4l2_dev, "vpfe_param_handler\n");
if (vpfe_dev->started) {
/* only allowed if streaming is not started */
- v4l2_err(&vpfe_dev->v4l2_dev, "device already started\n");
+ v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
+ "device already started\n");
return -EBUSY;
}
@@ -1705,16 +1705,23 @@
case VPFE_CMD_S_CCDC_RAW_PARAMS:
v4l2_warn(&vpfe_dev->v4l2_dev,
"VPFE_CMD_S_CCDC_RAW_PARAMS: experimental ioctl\n");
- ret = ccdc_dev->hw_ops.set_params(param);
- if (ret) {
- v4l2_err(&vpfe_dev->v4l2_dev,
- "Error in setting parameters in CCDC\n");
- goto unlock_out;
- }
- if (vpfe_get_ccdc_image_format(vpfe_dev, &vpfe_dev->fmt) < 0) {
- v4l2_err(&vpfe_dev->v4l2_dev,
- "Invalid image format at CCDC\n");
- goto unlock_out;
+ if (ccdc_dev->hw_ops.set_params) {
+ ret = ccdc_dev->hw_ops.set_params(param);
+ if (ret) {
+ v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
+ "Error setting parameters in CCDC\n");
+ goto unlock_out;
+ }
+ if (vpfe_get_ccdc_image_format(vpfe_dev,
+ &vpfe_dev->fmt) < 0) {
+ v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
+ "Invalid image format at CCDC\n");
+ goto unlock_out;
+ }
+ } else {
+ ret = -EINVAL;
+ v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
+ "VPFE_CMD_S_CCDC_RAW_PARAMS not supported\n");
}
break;
default: