From: Liguang Zhang zhangliguang@linux.alibaba.com
stable inclusion from linux-4.19.198 commit 6a8a25196a818096f02c187233812c312359c1c9
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[ Upstream commit 7718629432676b5ebd9a32940782fe297a0abf8d ]
In function amba_handler_attach(), dev->res.name is initialized by amba_device_alloc. But when address_found is false, dev->res.name is assigned to null value, which leads to wrong resource name display in /proc/iomem, "<BAD>" is seen for those resources.
Signed-off-by: Liguang Zhang zhangliguang@linux.alibaba.com Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/acpi/acpi_amba.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/acpi/acpi_amba.c b/drivers/acpi/acpi_amba.c index 7f77c071709a7..eb09ee71ceb2e 100644 --- a/drivers/acpi/acpi_amba.c +++ b/drivers/acpi/acpi_amba.c @@ -70,6 +70,7 @@ static int amba_handler_attach(struct acpi_device *adev, case IORESOURCE_MEM: if (!address_found) { dev->res = *rentry->res; + dev->res.name = dev_name(&dev->dev); address_found = true; } break;