svn commit: r233894 - head/sys/dev/fb
Jung-uk Kim
jkim at FreeBSD.org
Wed Apr 4 21:38:27 UTC 2012
Author: jkim
Date: Wed Apr 4 21:38:26 2012
New Revision: 233894
URL: http://svn.freebsd.org/changeset/base/233894
Log:
Do not copy VESA state buffer if the VBE call has failed for any reason.
Do not unnecessarily clear the state buffer before calling the function.
Modified:
head/sys/dev/fb/vesa.c
Modified: head/sys/dev/fb/vesa.c
==============================================================================
--- head/sys/dev/fb/vesa.c Wed Apr 4 21:31:20 2012 (r233893)
+++ head/sys/dev/fb/vesa.c Wed Apr 4 21:38:26 2012 (r233894)
@@ -542,7 +542,8 @@ vesa_bios_save_restore(int code, void *p
switch (code) {
case STATE_SAVE:
x86bios_intr(®s, 0x10);
- bcopy(vesa_state_buf, p, vesa_state_buf_size);
+ if (regs.R_AX == 0x004f)
+ bcopy(vesa_state_buf, p, vesa_state_buf_size);
break;
case STATE_LOAD:
bcopy(p, vesa_state_buf, vesa_state_buf_size);
@@ -1481,7 +1482,6 @@ vesa_save_state(video_adapter_t *adp, vo
} else
vesa_vmem_buf = NULL;
((adp_state_t *)p)->sig = V_STATE_SIG;
- bzero(((adp_state_t *)p)->regs, vesa_state_buf_size);
return (vesa_bios_save_restore(STATE_SAVE, ((adp_state_t *)p)->regs));
}
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