5.4-stable review patch. If anyone has any objections, please let me know.
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From: Aradhya Bhatia a-bhatia1@ti.com
commit c6a7ef0d4856b9629df390e9935d7fd67fe39f81 upstream.
Check for the return value of the phy_mipi_dphy_get_default_config() call, and in case of an error, return back the same.
Fixes: fced5a364dee ("drm/bridge: cdns: Convert to phy framework") Cc: stable@vger.kernel.org Reviewed-by: Tomi Valkeinen tomi.valkeinen@ideasonboard.com Reviewed-by: Dmitry Baryshkov dmitry.baryshkov@linaro.org Tested-by: Tomi Valkeinen tomi.valkeinen@ideasonboard.com Signed-off-by: Aradhya Bhatia a-bhatia1@ti.com Signed-off-by: Aradhya Bhatia aradhya.bhatia@linux.dev Link: https://lore.kernel.org/r/20250329113925.68204-5-aradhya.bhatia@linux.dev Signed-off-by: Dmitry Baryshkov dmitry.baryshkov@oss.qualcomm.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/bridge/cdns-dsi.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)
--- a/drivers/gpu/drm/bridge/cdns-dsi.c +++ b/drivers/gpu/drm/bridge/cdns-dsi.c @@ -616,9 +616,11 @@ static int cdns_dsi_check_conf(struct cd if (ret) return ret;
- phy_mipi_dphy_get_default_config(mode_clock * 1000, - mipi_dsi_pixel_format_to_bpp(output->dev->format), - nlanes, phy_cfg); + ret = phy_mipi_dphy_get_default_config(mode_clock * 1000, + mipi_dsi_pixel_format_to_bpp(output->dev->format), + nlanes, phy_cfg); + if (ret) + return ret;
ret = cdns_dsi_adjust_phy_config(dsi, dsi_cfg, phy_cfg, mode, mode_valid_check); if (ret)