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authorDan Carpenter <dan.carpenter@oracle.com>2015-05-15 12:24:15 +0300
committerTejun Heo <tj@kernel.org>2015-05-18 16:43:23 -0400
commit2d32d10103bc94ad2461864664b61ea98c930619 (patch)
treef91f36d5098222707aac7463310680c45670b3e8 /drivers/ata/ahci_xgene.c
parentc9802a4be6611520dd99d91d0d9c4efcaa0fa281 (diff)
ata: ahci_xgene: potential NULL dereference in probe
Smatch complains about this potential NULL dereference of "acpi_id". Fixes: c9802a4be661 ('ata: ahci_xgene: Add AHCI Support for 2nd HW version of APM X-Gene SoC AHCI SATA Host controller.') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'drivers/ata/ahci_xgene.c')
-rw-r--r--drivers/ata/ahci_xgene.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/ata/ahci_xgene.c b/drivers/ata/ahci_xgene.c
index 2add250d1555..e2c6d9e0c5ac 100644
--- a/drivers/ata/ahci_xgene.c
+++ b/drivers/ata/ahci_xgene.c
@@ -732,9 +732,7 @@ static int xgene_ahci_probe(struct platform_device *pdev)
if (!acpi_id) {
dev_warn(&pdev->dev, "No node entry in ACPI table. Assume version1\n");
version = XGENE_AHCI_V1;
- }
-
- if (acpi_id->driver_data) {
+ } else if (acpi_id->driver_data) {
version = (enum xgene_ahci_version) acpi_id->driver_data;
status = acpi_get_object_info(ACPI_HANDLE(&pdev->dev), &info);
if (ACPI_FAILURE(status)) {