shark/bbswitch-g14
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Do not check for nvidia DSM on igd handle

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Just in case the integrated video ACPI handle cannot be found. This is a safety
net for those who try bbswitch on an incompatible machine. I do not know any of
such machinees, but it looks good.
This commit is contained in:
Peter Wu 2013-04-02 17:40:38 +02:00
parent 91814c63f1
commit 3e50c7b118
1 changed files with 1 additions and 1 deletions
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bbswitch.c
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@ -434,7 +434,7 @@ static int __init bbswitch_init(void) {
/* At least two Acer machines are known to use the intel ACPI handle /* At least two Acer machines are known to use the intel ACPI handle
* with the legacy nvidia DSM */ * with the legacy nvidia DSM */
dis_handle = igd_handle; dis_handle = igd_handle;
if (has_dsm_func(acpi_nvidia_dsm_muid, 0x102, 0x3)) { if (dis_handle && has_dsm_func(acpi_nvidia_dsm_muid, 0x102, 0x3)) {
dsm_type = DSM_TYPE_NVIDIA; dsm_type = DSM_TYPE_NVIDIA;
pr_info("detected a nVidia _DSM function on the" pr_info("detected a nVidia _DSM function on the"
" integrated video card\n"); " integrated video card\n");