[PATCH v9 03/15] ACPI/IORT: Rework iort_match_node_callback() return value handling

From: Hanjun Guo
Date: Tue Mar 07 2017 - 07:47:51 EST


From: Hanjun Guo <hanjun.guo@xxxxxxxxxx>

The return value handling in iort_match_node_callback() is
too convoluted; update the iort_match_node_callback() return
value handling to make code easier to read.

Signed-off-by: Hanjun Guo <hanjun.guo@xxxxxxxxxx>
[lorenzo.pieralisi@xxxxxxx: rewrote commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx>
Tested-by: Ming Lei <ming.lei@xxxxxxxxxxxxx>
Tested-by: Wei Xu <xuwei5@xxxxxxxxxxxxx>
Tested-by: Sinan Kaya <okaya@xxxxxxxxxxxxxx>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx>
Cc: Tomasz Nowicki <tn@xxxxxxxxxxxx>
---
drivers/acpi/arm64/iort.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
index abc5774..a6b807d 100644
--- a/drivers/acpi/arm64/iort.c
+++ b/drivers/acpi/arm64/iort.c
@@ -253,17 +253,15 @@ static acpi_status iort_match_node_callback(struct acpi_iort_node *node,
void *context)
{
struct device *dev = context;
- acpi_status status;
+ acpi_status status = AE_NOT_FOUND;

if (node->type == ACPI_IORT_NODE_NAMED_COMPONENT) {
struct acpi_buffer buf = { ACPI_ALLOCATE_BUFFER, NULL };
struct acpi_device *adev = to_acpi_device_node(dev->fwnode);
struct acpi_iort_named_component *ncomp;

- if (!adev) {
- status = AE_NOT_FOUND;
+ if (!adev)
goto out;
- }

status = acpi_get_name(adev->handle, ACPI_FULL_PATHNAME, &buf);
if (ACPI_FAILURE(status)) {
@@ -289,8 +287,6 @@ static acpi_status iort_match_node_callback(struct acpi_iort_node *node,
*/
status = pci_rc->pci_segment_number == pci_domain_nr(bus) ?
AE_OK : AE_NOT_FOUND;
- } else {
- status = AE_NOT_FOUND;
}
out:
return status;
--
1.7.12.4