"bpp" needs to be signed for the error handling to work.
Fixes: 84e05408fcfe ('drm: rockchip: Support Synopsys DW MIPI DSI')
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
index 7bfe243..c35e5af 100644
--- a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
+++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
@@ -461,7 +461,8 @@ static int dw_mipi_dsi_phy_init(struct dw_mipi_dsi *dsi)
static int dw_mipi_dsi_get_lane_bps(struct dw_mipi_dsi *dsi)
{
- unsigned int bpp, i, pre;
+ int bpp;
+ unsigned int i, pre;
unsigned long mpclk, pllref, tmp;
unsigned int m = 1, n = 1, target_mbps = 1000;
unsigned int max_mbps = dptdin_map[ARRAY_SIZE(dptdin_map) - 1].max_mbps;
--
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