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charset="utf-8" Propagate return values from __v4l2_ctrl_modify_range() and __v4l2_ctrl_s_ctrl() in imx219_set_ctrl() and imx219_set_pad_format(). This ensures proper error handling instead of ignoring possible failures. Also return the result of imx219_set_pad_format() from imx219_init_state(). Signed-off-by: Tarang Raval Reviewed-by: Dave Stevenson Reviewed-by: Isaac Scott --- drivers/media/i2c/imx219.c | 61 +++++++++++++++++++++++++------------- 1 file changed, 40 insertions(+), 21 deletions(-) diff --git a/drivers/media/i2c/imx219.c b/drivers/media/i2c/imx219.c index 48efdcd2a8f9..40693635c0c3 100644 --- a/drivers/media/i2c/imx219.c +++ b/drivers/media/i2c/imx219.c @@ -453,10 +453,14 @@ static int imx219_set_ctrl(struct v4l2_ctrl *ctrl) exposure_max =3D format->height + ctrl->val - 4; exposure_def =3D (exposure_max < IMX219_EXPOSURE_DEFAULT) ? exposure_max : IMX219_EXPOSURE_DEFAULT; - __v4l2_ctrl_modify_range(imx219->exposure, - imx219->exposure->minimum, - exposure_max, imx219->exposure->step, - exposure_def); + ret =3D __v4l2_ctrl_modify_range(imx219->exposure, + imx219->exposure->minimum, + exposure_max, + imx219->exposure->step, + exposure_def); + if (ret) + return ret; + } =20 /* @@ -848,6 +852,7 @@ static int imx219_set_pad_format(struct v4l2_subdev *sd, struct v4l2_rect *crop; u8 bin_h, bin_v, binning; u32 prev_line_len; + int ret; =20 format =3D v4l2_subdev_state_get_format(state, 0); prev_line_len =3D format->width + imx219->hblank->val; @@ -883,19 +888,28 @@ static int imx219_set_pad_format(struct v4l2_subdev *= sd, int pixel_rate; =20 /* Update limits and set FPS to default */ - __v4l2_ctrl_modify_range(imx219->vblank, IMX219_VBLANK_MIN, - IMX219_FLL_MAX - mode->height, 1, + ret =3D __v4l2_ctrl_modify_range(imx219->vblank, IMX219_VBLANK_MIN, + IMX219_FLL_MAX - mode->height, 1, + mode->fll_def - mode->height); + if (ret) + return ret; + + ret =3D __v4l2_ctrl_s_ctrl(imx219->vblank, mode->fll_def - mode->height); - __v4l2_ctrl_s_ctrl(imx219->vblank, - mode->fll_def - mode->height); + if (ret) + return ret; + /* Update max exposure while meeting expected vblanking */ exposure_max =3D mode->fll_def - 4; exposure_def =3D (exposure_max < IMX219_EXPOSURE_DEFAULT) ? exposure_max : IMX219_EXPOSURE_DEFAULT; - __v4l2_ctrl_modify_range(imx219->exposure, - imx219->exposure->minimum, - exposure_max, imx219->exposure->step, - exposure_def); + ret =3D __v4l2_ctrl_modify_range(imx219->exposure, + imx219->exposure->minimum, + exposure_max, + imx219->exposure->step, + exposure_def); + if (ret) + return ret; =20 /* * With analog binning the default minimum line length of 3448 @@ -906,9 +920,12 @@ static int imx219_set_pad_format(struct v4l2_subdev *s= d, imx219_get_binning(state, &bin_h, &bin_v); llp_min =3D (bin_h & bin_v) =3D=3D IMX219_BINNING_X2_ANALOG ? IMX219_BINNED_LLP_MIN : IMX219_LLP_MIN; - __v4l2_ctrl_modify_range(imx219->hblank, llp_min - mode->width, - IMX219_LLP_MAX - mode->width, 1, - llp_min - mode->width); + ret =3D __v4l2_ctrl_modify_range(imx219->hblank, + llp_min - mode->width, + IMX219_LLP_MAX - mode->width, 1, + llp_min - mode->width); + if (ret) + return ret; /* * Retain PPL setting from previous mode so that the * line time does not change on a mode change. @@ -917,13 +934,17 @@ static int imx219_set_pad_format(struct v4l2_subdev *= sd, * mode width subtracted. */ hblank =3D prev_line_len - mode->width; - __v4l2_ctrl_s_ctrl(imx219->hblank, hblank); + ret =3D __v4l2_ctrl_s_ctrl(imx219->hblank, hblank); + if (ret) + return ret; =20 /* Scale the pixel rate based on the mode specific factor */ pixel_rate =3D imx219_get_pixel_rate(imx219) * imx219_get_rate_factor(state); - __v4l2_ctrl_modify_range(imx219->pixel_rate, pixel_rate, - pixel_rate, 1, pixel_rate); + ret =3D __v4l2_ctrl_modify_range(imx219->pixel_rate, pixel_rate, + pixel_rate, 1, pixel_rate); + if (ret) + return ret; } =20 return 0; @@ -972,9 +993,7 @@ static int imx219_init_state(struct v4l2_subdev *sd, }, }; =20 - imx219_set_pad_format(sd, state, &fmt); - - return 0; + return imx219_set_pad_format(sd, state, &fmt); } =20 static const struct v4l2_subdev_video_ops imx219_video_ops =3D { --=20 2.34.1