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bbswitch: Warn when result type is unknown

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This commit is contained in:
Lekensteyn
2011-12-13 23:15:18 +01:00
parent 41e0b9fca0
commit 93f07b9570
1 changed files with 6 additions and 4 deletions
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10
bbswitch.c
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@@ -104,10 +104,9 @@ static int acpi_call_dsm(acpi_handle handle, const char muid[16], int revid,
obj = (union acpi_object *)output.pointer;
if (obj->type == ACPI_TYPE_INTEGER && result)
*result = obj->integer.value;
if (obj->type == ACPI_TYPE_BUFFER) {
if (obj->type == ACPI_TYPE_INTEGER && result) {
*result = obj->integer.value;
} else if (obj->type == ACPI_TYPE_BUFFER) {
if (obj->buffer.length == 4 && result) {
*result = 0;
*result |= obj->buffer.pointer[0];
@@ -115,6 +114,9 @@ static int acpi_call_dsm(acpi_handle handle, const char muid[16], int revid,
*result |= (obj->buffer.pointer[2] << 16);
*result |= (obj->buffer.pointer[3] << 24);
}
} else {
printk(KERN_WARNING "bbswitch: _DSM call yields an unsupported result"
" type: %X\n", obj->type);
}
kfree(output.pointer);