ACPI: IORT: Add comments for not calling acpi_put_table()

The iort_table will be used at runtime after acpi_iort_init(),
so add some comments to clarify this to make it less confusing.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Link: https://lore.kernel.org/r/1588910753-18543-2-git-send-email-guohanjun@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>

diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
index 6e445bc..619a3e5 100644 (file)
--- a/drivers/acpi/arm64/iort.c
+++ b/drivers/acpi/arm64/iort.c
@@ -1667,6 +1667,10 @@ void __init acpi_iort_init(void)
 {
        acpi_status status;
 
+       /* iort_table will be used at runtime after the iort init,
+        * so we don't need to call acpi_put_table() to release
+        * the IORT table mapping.
+        */
        status = acpi_get_table(ACPI_SIG_IORT, 0, &iort_table);
        if (ACPI_FAILURE(status)) {
                if (status != AE_NOT_FOUND) {