From: Uwe Kleine-König Date: Fri, 2 Dec 2022 18:35:28 +0000 (+0100) Subject: drm/bridge: ti-sn65dsi86: Propagate errors in .get_state() to the caller X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=f00de180661d8191aa979c2a8a8f4ec2b35a4cfd;p=linux.git drm/bridge: ti-sn65dsi86: Propagate errors in .get_state() to the caller .get_state() can return an error indication. Make use of it to propagate failing hardware accesses. Acked-by: Douglas Anderson Reviewed-by: Laurent Pinchart Acked-by: Conor Dooley Link: https://lore.kernel.org/r/20221130152148.2769768-4-u.kleine-koenig@pengutronix.de Signed-off-by: Uwe Kleine-König Signed-off-by: Thierry Reding --- diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c index 6826d2423ae9a..9671071490d8a 100644 --- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c +++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c @@ -1512,19 +1512,19 @@ static int ti_sn_pwm_get_state(struct pwm_chip *chip, struct pwm_device *pwm, ret = regmap_read(pdata->regmap, SN_PWM_EN_INV_REG, &pwm_en_inv); if (ret) - return 0; + return ret; ret = ti_sn65dsi86_read_u16(pdata, SN_BACKLIGHT_SCALE_REG, &scale); if (ret) - return 0; + return ret; ret = ti_sn65dsi86_read_u16(pdata, SN_BACKLIGHT_REG, &backlight); if (ret) - return 0; + return ret; ret = regmap_read(pdata->regmap, SN_PWM_PRE_DIV_REG, &pre_div); if (ret) - return 0; + return ret; state->enabled = FIELD_GET(SN_PWM_EN_MASK, pwm_en_inv); if (FIELD_GET(SN_PWM_INV_MASK, pwm_en_inv))