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vgaarb: read back vga count when setting new decoding
author
Tiago Vignatti
<tiago.vignatti@nokia.com>
Sat, 22 May 2010 15:23:33 +0000
(18:23 +0300)
committer
Tiago Vignatti
<tiago.vignatti@nokia.com>
Wed, 16 Jun 2010 15:57:28 +0000
(18:57 +0300)
Decode kernel operation can also change vga refcount, so we need to read back
the information when calling it.
Signed-off-by: Tiago Vignatti <tiago.vignatti@nokia.com>
src/common_vgaarb.c
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diff --git
a/src/common_vgaarb.c
b/src/common_vgaarb.c
index
f09d513
..
c94b362
100644
(file)
--- a/
src/common_vgaarb.c
+++ b/
src/common_vgaarb.c
@@
-263,6
+263,13
@@
pci_device_vgaarb_decodes(int new_vgaarb_rsrc)
ret = vgaarb_write(pci_sys->vgaarb_fd, buf, len);
if (ret == 0)
dev->vgaarb_rsrc = new_vgaarb_rsrc;
+
+ ret = read(pci_sys->vgaarb_fd, buf, BUFSIZE);
+ if (ret <= 0)
+ return -1;
+
+ parse_string_to_decodes_rsrc(buf, &pci_sys->vga_count, NULL);
+
return ret;
}