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| author | Jacob Garber <jgarber1@ualberta.ca> | 2019-05-27 17:10:24 -0600 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2019-05-29 20:11:19 +0000 |
| commit | bdcb4d37506f04e205f11ff45fd0925cf2a5cbc1 (patch) | |
| tree | 07db46de62e9e7d4836a7507ec24d90d85ea66fc /src/drivers/generic | |
| parent | 924463d1a58075c208b008e13d8b0ec2f2b8731a (diff) | |
| download | coreboot-bdcb4d37506f04e205f11ff45fd0925cf2a5cbc1.tar.xz | |
drivers/generic/max98357a: Add extra error handling
It is possible that acpi_device_scope() and acpi_device_name() can
return NULL to indicate an error, so add error handling to check their
return values.
Change-Id: I4c7ab0c592845d9d5f142e078fc2b505a99ecd12
Signed-off-by: Jacob Garber <jgarber1@ualberta.ca>
Found-by: Coverity CID 1362592
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33028
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'src/drivers/generic')
| -rw-r--r-- | src/drivers/generic/max98357a/max98357a.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/drivers/generic/max98357a/max98357a.c b/src/drivers/generic/max98357a/max98357a.c index 1408dacca6..838491dc84 100644 --- a/src/drivers/generic/max98357a/max98357a.c +++ b/src/drivers/generic/max98357a/max98357a.c @@ -36,9 +36,14 @@ static void max98357a_fill_ssdt(struct device *dev) if (!dev->enabled || !config) return; + const char *scope = acpi_device_scope(dev); + const char *name = acpi_device_name(dev); + if (!scope || !name) + return; + /* Device */ - acpigen_write_scope(acpi_device_scope(dev)); - acpigen_write_device(acpi_device_name(dev)); + acpigen_write_scope(scope); + acpigen_write_device(name); acpigen_write_name_string("_HID", MAX98357A_ACPI_HID); acpigen_write_name_integer("_UID", 0); acpigen_write_name_string("_DDN", dev->chip_ops->name); |