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authorsaturneric <[email protected]>2025-11-16 14:34:50 +0000
committersaturneric <[email protected]>2025-11-16 14:34:50 +0000
commit690862a8d74fee1e07f33dad44b761753f101779 (patch)
treef81bdcab8cd5a640518dba5056de6c62bd071eaf /drivers/acpi/prmt.c
parentMerge tag 'v6.17.7' into linux-6.17.y (diff)
parentLinux 6.17.8 (diff)
downloadkernel-linux-6.17.y.tar.gz
kernel-linux-6.17.y.zip
Merge tag 'v6.17.8' into linux-6.17.ylinux-6.17.y
This is the 6.17.8 stable release
Diffstat (limited to 'drivers/acpi/prmt.c')
-rw-r--r--drivers/acpi/prmt.c19
1 files changed, 16 insertions, 3 deletions
diff --git a/drivers/acpi/prmt.c b/drivers/acpi/prmt.c
index be033bbb126a..6792d4385eee 100644
--- a/drivers/acpi/prmt.c
+++ b/drivers/acpi/prmt.c
@@ -150,15 +150,28 @@ acpi_parse_prmt(union acpi_subtable_headers *header, const unsigned long end)
th = &tm->handlers[cur_handler];
guid_copy(&th->guid, (guid_t *)handler_info->handler_guid);
+
+ /*
+ * Print an error message if handler_address is NULL, the parse of VA also
+ * can be skipped.
+ */
+ if (unlikely(!handler_info->handler_address)) {
+ pr_info("Skipping handler with NULL address for GUID: %pUL",
+ (guid_t *)handler_info->handler_guid);
+ continue;
+ }
+
th->handler_addr =
(void *)efi_pa_va_lookup(&th->guid, handler_info->handler_address);
/*
- * Print a warning message if handler_addr is zero which is not expected to
- * ever happen.
+ * Print a warning message and skip the parse of VA if handler_addr is zero
+ * which is not expected to ever happen.
*/
- if (unlikely(!th->handler_addr))
+ if (unlikely(!th->handler_addr)) {
pr_warn("Failed to find VA of handler for GUID: %pUL, PA: 0x%llx",
&th->guid, handler_info->handler_address);
+ continue;
+ }
th->static_data_buffer_addr =
efi_pa_va_lookup(&th->guid, handler_info->static_data_buffer_address);