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drivers/generic/max98357a: Don't write device if HID is missing 

If the device is missing the HID, the code would previously leave an
open scope and device on the stack.

BUG=b:154756391
TEST=Verify stack ACPI stack does not exceed limit on Trembyle.

Fixes: a1c82c5ebe ("drivers/generic/max98357a: Allow custom _HID from config")
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I798ed08ef0a0575def12937a66a7ce99f743e60d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42014
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
This commit is contained in:
Raul E Rangel 2020-06-02 10:47:27 -06:00 committed by Felix Held
parent 79e12abb1b
commit 066a9af02c
1 changed files with 4 additions and 4 deletions
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8
src/drivers/generic/max98357a/max98357a.c
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@ -26,15 +26,15 @@ static void max98357a_fill_ssdt(const struct device *dev)
if (!scope || !name)
return;
/* Device */
acpigen_write_scope(scope);
acpigen_write_device(name);
if (!config->hid) {
printk(BIOS_ERR, "%s: ERROR: _HID required\n", dev_path(dev));
return;
}
/* Device */
acpigen_write_scope(scope);
acpigen_write_device(name);
acpigen_write_name_string("_HID", config->hid);
acpigen_write_name_integer("_UID", 0);
acpigen_write_name_string("_DDN", dev->chip_ops->name);