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author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2005-07-28 10:30:20 +0200 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2005-07-28 10:30:20 +0200 |
commit | 661299d9d0437a0ff72240f3d60016ac3a361a6e (patch) | |
tree | 765512576314fc3612b503f182b9ae4e60fcf849 /drivers/video/fbcmap.c | |
parent | [SERIAL] Convert parport_serial to use new 8250_pci interfaces (diff) | |
parent | [PATCH] new alpha syscalls (diff) | |
download | linux-661299d9d0437a0ff72240f3d60016ac3a361a6e.tar.xz linux-661299d9d0437a0ff72240f3d60016ac3a361a6e.zip |
Merge with Linus' 2.6 tree
Diffstat (limited to 'drivers/video/fbcmap.c')
-rw-r--r-- | drivers/video/fbcmap.c | 96 |
1 files changed, 36 insertions, 60 deletions
diff --git a/drivers/video/fbcmap.c b/drivers/video/fbcmap.c index 4e5ce8f7d65e..c32a2a50bfa2 100644 --- a/drivers/video/fbcmap.c +++ b/drivers/video/fbcmap.c @@ -212,7 +212,7 @@ int fb_cmap_to_user(struct fb_cmap *from, struct fb_cmap_user *to) int fb_set_cmap(struct fb_cmap *cmap, struct fb_info *info) { - int i, start; + int i, start, rc = 0; u16 *red, *green, *blue, *transp; u_int hred, hgreen, hblue, htransp = 0xffff; @@ -225,75 +225,51 @@ int fb_set_cmap(struct fb_cmap *cmap, struct fb_info *info) if (start < 0 || (!info->fbops->fb_setcolreg && !info->fbops->fb_setcmap)) return -EINVAL; - if (info->fbops->fb_setcmap) - return info->fbops->fb_setcmap(cmap, info); - for (i = 0; i < cmap->len; i++) { - hred = *red++; - hgreen = *green++; - hblue = *blue++; - if (transp) - htransp = *transp++; - if (info->fbops->fb_setcolreg(start++, - hred, hgreen, hblue, htransp, - info)) - break; + if (info->fbops->fb_setcmap) { + rc = info->fbops->fb_setcmap(cmap, info); + } else { + for (i = 0; i < cmap->len; i++) { + hred = *red++; + hgreen = *green++; + hblue = *blue++; + if (transp) + htransp = *transp++; + if (info->fbops->fb_setcolreg(start++, + hred, hgreen, hblue, + htransp, info)) + break; + } } - return 0; + if (rc == 0) + fb_copy_cmap(cmap, &info->cmap); + + return rc; } int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *info) { - int i, start; - u16 __user *red, *green, *blue, *transp; - u_int hred, hgreen, hblue, htransp = 0xffff; - - red = cmap->red; - green = cmap->green; - blue = cmap->blue; - transp = cmap->transp; - start = cmap->start; + int rc, size = cmap->len * sizeof(u16); + struct fb_cmap umap; - if (start < 0 || (!info->fbops->fb_setcolreg && - !info->fbops->fb_setcmap)) + if (cmap->start < 0 || (!info->fbops->fb_setcolreg && + !info->fbops->fb_setcmap)) return -EINVAL; - /* If we can batch, do it */ - if (info->fbops->fb_setcmap && cmap->len > 1) { - struct fb_cmap umap; - int size = cmap->len * sizeof(u16); - int rc; - - memset(&umap, 0, sizeof(struct fb_cmap)); - rc = fb_alloc_cmap(&umap, cmap->len, transp != NULL); - if (rc) - return rc; - if (copy_from_user(umap.red, red, size) || - copy_from_user(umap.green, green, size) || - copy_from_user(umap.blue, blue, size) || - (transp && copy_from_user(umap.transp, transp, size))) { - rc = -EFAULT; - } - umap.start = start; - if (rc == 0) - rc = info->fbops->fb_setcmap(&umap, info); - fb_dealloc_cmap(&umap); + memset(&umap, 0, sizeof(struct fb_cmap)); + rc = fb_alloc_cmap(&umap, cmap->len, cmap->transp != NULL); + if (rc) return rc; + if (copy_from_user(umap.red, cmap->red, size) || + copy_from_user(umap.green, cmap->green, size) || + copy_from_user(umap.blue, cmap->blue, size) || + (cmap->transp && copy_from_user(umap.transp, cmap->transp, size))) { + fb_dealloc_cmap(&umap); + return -EFAULT; } - - for (i = 0; i < cmap->len; i++, red++, blue++, green++) { - if (get_user(hred, red) || - get_user(hgreen, green) || - get_user(hblue, blue) || - (transp && get_user(htransp, transp))) - return -EFAULT; - if (info->fbops->fb_setcolreg(start++, - hred, hgreen, hblue, htransp, - info)) - return 0; - if (transp) - transp++; - } - return 0; + umap.start = cmap->start; + rc = fb_set_cmap(&umap, info); + fb_dealloc_cmap(&umap); + return rc; } /** |