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[4.9,221/245] ACPI: AMBA: Fix resource name in /proc/iomem

Message ID 20210719144947.523066336@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg Kroah-Hartman July 19, 2021, 2:52 p.m. UTC 
From: Liguang Zhang <zhangliguang@linux.alibaba.com>

[ 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>
---
 drivers/acpi/acpi_amba.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/drivers/acpi/acpi_amba.c b/drivers/acpi/acpi_amba.c
index 7f77c071709a..eb09ee71ceb2 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;