diff options
| author | Junlin Yang <yangjunlin@yulong.com> | 2021-03-12 08:14:45 +0100 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> | 2021-03-17 12:59:23 +0100 |
| commit | 6909115442759efef3d4bc5d9c54d7943f1afc14 (patch) | |
| tree | 0998ef1579b1b6da1601e4e2c7bf2caa2028a6b1 /drivers/gpu | |
| parent | drm/ttm: make ttm_bo_unpin more defensive (diff) | |
| download | linux-6909115442759efef3d4bc5d9c54d7943f1afc14.tar.xz linux-6909115442759efef3d4bc5d9c54d7943f1afc14.zip | |
drm/omap: dsi: fix unsigned expression compared with zero
r is "u32" always >= 0,mipi_dsi_create_packet may return little than zero.
so r < 0 condition is never accessible.
Fixes coccicheck warnings:
./drivers/gpu/drm/omapdrm/dss/dsi.c:2155:5-6:
WARNING: Unsigned expression compared with zero: r < 0
Signed-off-by: Junlin Yang <yangjunlin@yulong.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210312071445.1721-1-angkery@163.com
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/omapdrm/dss/dsi.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c b/drivers/gpu/drm/omapdrm/dss/dsi.c index 8e11612f5fe1..b31d750c425a 100644 --- a/drivers/gpu/drm/omapdrm/dss/dsi.c +++ b/drivers/gpu/drm/omapdrm/dss/dsi.c @@ -2149,11 +2149,12 @@ static int dsi_vc_send_short(struct dsi_data *dsi, int vc, const struct mipi_dsi_msg *msg) { struct mipi_dsi_packet pkt; + int ret; u32 r; - r = mipi_dsi_create_packet(&pkt, msg); - if (r < 0) - return r; + ret = mipi_dsi_create_packet(&pkt, msg); + if (ret < 0) + return ret; WARN_ON(!dsi_bus_is_locked(dsi)); |