fb_set_cmap() already checks the parameters, so need remove the redundancy checking. This redundancy checking is also incorrect, the related warning: drivers/video/fbcmap.c:288:2: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits] Signed-off-by: Chen Gang <gang.chen@xxxxxxxxxxx> --- drivers/video/fbcmap.c | 7 +------ 1 files changed, 1 insertions(+), 6 deletions(-) diff --git a/drivers/video/fbcmap.c b/drivers/video/fbcmap.c index 5c3960d..f89245b 100644 --- a/drivers/video/fbcmap.c +++ b/drivers/video/fbcmap.c @@ -285,13 +285,8 @@ int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *info) rc = -ENODEV; goto out; } - if (cmap->start < 0 || (!info->fbops->fb_setcolreg && - !info->fbops->fb_setcmap)) { - rc = -EINVAL; - goto out1; - } + rc = fb_set_cmap(&umap, info); -out1: unlock_fb_info(info); out: fb_dealloc_cmap(&umap); -- 1.7.7.6 -- To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html