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Commit 484bb6c9 authored by Andrzej Hajda's avatar Andrzej Hajda Committed by Mark Yao
Browse files

drm/rockchip/dsi: fix handling mipi_dsi_pixel_format_to_bpp result 



The function can return negative value so it should be assigned to signed
variable.

The problem has been detected using patch
scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci.

Signed-off-by: default avatarAndrzej Hajda <a.hajda@samsung.com>
Reviewed-by: default avatarChris Zhong <zyw@rock-chips.com>
parent c7647f86

drivers/gpu/drm/rockchip/dw-mipi-dsi.c

+2 −1
Original line number Diff line number Diff line
@@ -461,10 +461,11 @@ 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;

	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;

	int bpp;



	bpp = mipi_dsi_pixel_format_to_bpp(dsi->format);

	if (bpp < 0) {