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viafb: fix accel_flags check_var bug 

viafb: fix accel_flags check_var bug

In check_var we should check and modify the var given and not the
one which is currently active. So this code was obviously wrong.
Probably this was doing no harm because all acceleration functions
also check whether acceleration is possible. (otherwise I would
expect this to lead to a null pointer dereference)

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>
This commit is contained in:
Florian Tobias Schandinat 2010-07-23 11:32:25 +00:00
parent cd5899551c
commit af29a5b178
1 changed files with 2 additions and 2 deletions
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4
drivers/video/via/viafbdev.c
View File

@ -216,9 +216,9 @@ static int viafb_check_var(struct fb_var_screeninfo *var,
/* Adjust var according to our driver's own table */
viafb_fill_var_timing_info(var, viafb_refresh, vmode_entry);
if (info->var.accel_flags & FB_ACCELF_TEXT &&
if (var->accel_flags & FB_ACCELF_TEXT &&
!ppar->shared->vdev->engine_mmio)
info->var.accel_flags = 0;
var->accel_flags = 0;
return 0;
}