tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 550f4769c7c4a84e3966f20887c6e249c5f2afc4 commit: 05f634040c0d05f59f2dcd39722157cb3b57c85b [8840/10202] media: staging/imx7: add imx7 CSI subdev driver New smatch warnings: drivers/staging/media/imx/imx7-media-csi.c:1082 imx7_csi_set_fmt() error: uninitialized symbol 'cc'. Old smatch warnings: drivers/staging/media/imx/imx7-media-csi.c:1076 imx7_csi_set_fmt() error: uninitialized symbol 'outcc'. # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=05f634040c0d05f59f2dcd39722157cb3b57c85b git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git remote update linux-next git checkout 05f634040c0d05f59f2dcd39722157cb3b57c85b vim +/cc +1082 drivers/staging/media/imx/imx7-media-csi.c 05f63404 Rui Miguel Silva 2019-02-06 1029 05f63404 Rui Miguel Silva 2019-02-06 1030 static int imx7_csi_set_fmt(struct v4l2_subdev *sd, 05f63404 Rui Miguel Silva 2019-02-06 1031 struct v4l2_subdev_pad_config *cfg, 05f63404 Rui Miguel Silva 2019-02-06 1032 struct v4l2_subdev_format *sdformat) 05f63404 Rui Miguel Silva 2019-02-06 1033 { 05f63404 Rui Miguel Silva 2019-02-06 1034 struct imx7_csi *csi = v4l2_get_subdevdata(sd); 05f63404 Rui Miguel Silva 2019-02-06 1035 struct imx_media_video_dev *vdev = csi->vdev; 05f63404 Rui Miguel Silva 2019-02-06 1036 const struct imx_media_pixfmt *outcc; 05f63404 Rui Miguel Silva 2019-02-06 1037 struct v4l2_mbus_framefmt *outfmt; 05f63404 Rui Miguel Silva 2019-02-06 1038 struct v4l2_pix_format vdev_fmt; 05f63404 Rui Miguel Silva 2019-02-06 1039 const struct imx_media_pixfmt *cc; 05f63404 Rui Miguel Silva 2019-02-06 1040 struct v4l2_mbus_framefmt *fmt; 05f63404 Rui Miguel Silva 2019-02-06 1041 struct v4l2_subdev_format format; 05f63404 Rui Miguel Silva 2019-02-06 1042 int ret = 0; 05f63404 Rui Miguel Silva 2019-02-06 1043 05f63404 Rui Miguel Silva 2019-02-06 1044 if (sdformat->pad >= IMX7_CSI_PADS_NUM) 05f63404 Rui Miguel Silva 2019-02-06 1045 return -EINVAL; 05f63404 Rui Miguel Silva 2019-02-06 1046 05f63404 Rui Miguel Silva 2019-02-06 1047 mutex_lock(&csi->lock); 05f63404 Rui Miguel Silva 2019-02-06 1048 05f63404 Rui Miguel Silva 2019-02-06 1049 if (csi->is_streaming) { 05f63404 Rui Miguel Silva 2019-02-06 1050 ret = -EBUSY; 05f63404 Rui Miguel Silva 2019-02-06 1051 goto out_unlock; 05f63404 Rui Miguel Silva 2019-02-06 1052 } 05f63404 Rui Miguel Silva 2019-02-06 1053 05f63404 Rui Miguel Silva 2019-02-06 1054 imx7_csi_try_fmt(csi, cfg, sdformat, &cc); 05f63404 Rui Miguel Silva 2019-02-06 1055 05f63404 Rui Miguel Silva 2019-02-06 1056 fmt = imx7_csi_get_format(csi, cfg, sdformat->pad, sdformat->which); 05f63404 Rui Miguel Silva 2019-02-06 1057 if (!fmt) { 05f63404 Rui Miguel Silva 2019-02-06 1058 ret = -EINVAL; 05f63404 Rui Miguel Silva 2019-02-06 1059 goto out_unlock; 05f63404 Rui Miguel Silva 2019-02-06 1060 } 05f63404 Rui Miguel Silva 2019-02-06 1061 05f63404 Rui Miguel Silva 2019-02-06 1062 *fmt = sdformat->format; 05f63404 Rui Miguel Silva 2019-02-06 1063 05f63404 Rui Miguel Silva 2019-02-06 1064 if (sdformat->pad == IMX7_CSI_PAD_SINK) { 05f63404 Rui Miguel Silva 2019-02-06 1065 /* propagate format to source pads */ 05f63404 Rui Miguel Silva 2019-02-06 1066 format.pad = IMX7_CSI_PAD_SRC; 05f63404 Rui Miguel Silva 2019-02-06 1067 format.which = sdformat->which; 05f63404 Rui Miguel Silva 2019-02-06 1068 format.format = sdformat->format; 05f63404 Rui Miguel Silva 2019-02-06 1069 imx7_csi_try_fmt(csi, cfg, &format, &outcc); 05f63404 Rui Miguel Silva 2019-02-06 1070 05f63404 Rui Miguel Silva 2019-02-06 1071 outfmt = imx7_csi_get_format(csi, cfg, IMX7_CSI_PAD_SRC, 05f63404 Rui Miguel Silva 2019-02-06 1072 sdformat->which); 05f63404 Rui Miguel Silva 2019-02-06 1073 *outfmt = format.format; 05f63404 Rui Miguel Silva 2019-02-06 1074 05f63404 Rui Miguel Silva 2019-02-06 1075 if (sdformat->which == V4L2_SUBDEV_FORMAT_ACTIVE) 05f63404 Rui Miguel Silva 2019-02-06 1076 csi->cc[IMX7_CSI_PAD_SRC] = outcc; 05f63404 Rui Miguel Silva 2019-02-06 1077 } 05f63404 Rui Miguel Silva 2019-02-06 1078 05f63404 Rui Miguel Silva 2019-02-06 1079 if (sdformat->which == V4L2_SUBDEV_FORMAT_TRY) 05f63404 Rui Miguel Silva 2019-02-06 1080 goto out_unlock; 05f63404 Rui Miguel Silva 2019-02-06 1081 05f63404 Rui Miguel Silva 2019-02-06 @1082 csi->cc[sdformat->pad] = cc; 05f63404 Rui Miguel Silva 2019-02-06 1083 05f63404 Rui Miguel Silva 2019-02-06 1084 /* propagate output pad format to capture device */ 05f63404 Rui Miguel Silva 2019-02-06 1085 imx_media_mbus_fmt_to_pix_fmt(&vdev_fmt, 05f63404 Rui Miguel Silva 2019-02-06 1086 &csi->format_mbus[IMX7_CSI_PAD_SRC], 05f63404 Rui Miguel Silva 2019-02-06 1087 csi->cc[IMX7_CSI_PAD_SRC]); 05f63404 Rui Miguel Silva 2019-02-06 1088 mutex_unlock(&csi->lock); 05f63404 Rui Miguel Silva 2019-02-06 1089 imx_media_capture_device_set_format(vdev, &vdev_fmt); 05f63404 Rui Miguel Silva 2019-02-06 1090 05f63404 Rui Miguel Silva 2019-02-06 1091 return 0; 05f63404 Rui Miguel Silva 2019-02-06 1092 05f63404 Rui Miguel Silva 2019-02-06 1093 out_unlock: 05f63404 Rui Miguel Silva 2019-02-06 1094 mutex_unlock(&csi->lock); 05f63404 Rui Miguel Silva 2019-02-06 1095 05f63404 Rui Miguel Silva 2019-02-06 1096 return ret; 05f63404 Rui Miguel Silva 2019-02-06 1097 } 05f63404 Rui Miguel Silva 2019-02-06 1098 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
