diff options
| author | Andrzej Hajda <a.hajda@samsung.com> | 2016-01-14 09:59:02 +0100 |
|---|---|---|
| committer | Mark Yao <mark.yao@rock-chips.com> | 2016-01-18 08:43:16 +0800 |
| commit | 484bb6c969523aa547d854bb57104339ee4aa800 (patch) | |
| tree | d08bb42e449d974fff215143a14cbba09017cb7f /drivers/gpu/drm/rockchip | |
| parent | c7647f8681feeb6c0957e3cf5daed1fbf8b3a5af (diff) | |
| download | linux-0-day-484bb6c969523aa547d854bb57104339ee4aa800.tar.gz linux-0-day-484bb6c969523aa547d854bb57104339ee4aa800.tar.xz | |
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: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Chris Zhong <zyw@rock-chips.com>
Diffstat (limited to 'drivers/gpu/drm/rockchip')
| -rw-r--r-- | drivers/gpu/drm/rockchip/dw-mipi-dsi.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c index 7bfe243c61737..f8f8f29fb7c33 100644 --- a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c +++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c @@ -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) { |