AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-11-24 06:50:58 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

[PATCH] Fix pseudo_palette setup in asiliantfb_setcolreg()

Browse Source 
The setcolreg function will attempt to write 24 color entries to the
pseudo_pallette.  However, the pseudo_palette has only space for 16 entries.

Thanks to Atsushi Nemoto for reporting this bug.

Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Antonino A. Daplas 2006-02-24 13:04:20 -08:00 committed by Linus Torvalds
parent cacfc8cf4e
commit ee713059d4
1 changed files with 9 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
drivers/video/asiliantfb.c
View File

@ -322,32 +322,29 @@ static int asiliantfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
writeb(green, mmio_base + 0x791); writeb(green, mmio_base + 0x791);
writeb(blue, mmio_base + 0x791); writeb(blue, mmio_base + 0x791);
switch(p->var.bits_per_pixel) { if (regno < 16) {
case 15: switch(p->var.red.offset) {
if (regno < 16) { case 10: /* RGB 555 */
((u32 *)(p->pseudo_palette))[regno] = ((u32 *)(p->pseudo_palette))[regno] =
((red & 0xf8) << 7) | ((red & 0xf8) << 7) |
((green & 0xf8) << 2) | ((green & 0xf8) << 2) |
((blue & 0xf8) >> 3); ((blue & 0xf8) >> 3);
} break;
break; case 11: /* RGB 565 */
case 16:
if (regno < 16) {
((u32 *)(p->pseudo_palette))[regno] = ((u32 *)(p->pseudo_palette))[regno] =
((red & 0xf8) << 8) | ((red & 0xf8) << 8) |
((green & 0xfc) << 3) | ((green & 0xfc) << 3) |
((blue & 0xf8) >> 3); ((blue & 0xf8) >> 3);
} break;
break; case 16: /* RGB 888 */
case 24:
if (regno < 24) {
((u32 *)(p->pseudo_palette))[regno] = ((u32 *)(p->pseudo_palette))[regno] =
(red << 16) | (red << 16) |
(green << 8) | (green << 8) |
(blue); (blue);
break;
} }
break;
} }
return 0; return 0;
} }