[PATCH 6.12 329/403] platform/x86: hp-bioscfg: warn on element type mismatch instead of failing

6.12-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Muhammad Bilal <redacted>

commit b0e2af3ec94e0431adb59d9f249ebbd3b7285158 upstream.

hp_populate_enumeration_elements_from_package() returns -EIO and aborts
enumeration of the entire attribute when any single element has an
unexpected ACPI type. This is observed on HP EliteBook 840 G2 when the
BIOS returns malformed ACPI data following a failed WMI query:

  ACPI BIOS Error (bug): AE_AML_BUFFER_LIMIT, Index (0x000000032)
    is beyond end of object (length 0x32)
  ACPI Error: Aborting method \_SB.WMID.WQBE due to previous error
  Error expected type 2 for elem 13, but got type 1 instead
  hp_bioscfg: Returned error 0x3,
    "Invalid command value/Feature not supported"

Aborting immediately discards the attribute entirely.

Warn about the unexpected element type, free the temporary string, skip
the offending element, and continue parsing the remaining package
instead of failing the whole attribute.

Fixes: a34fc329b189 ("platform/x86: hp-bioscfg: bioscfg")
Cc: stable@vger.kernel.org
Signed-off-by: Muhammad Bilal <redacted>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Link: https://patch.msgid.link/20260709165900.30615-5-meatuni001@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/platform/x86/hp/hp-bioscfg/enum-attributes.c |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

--- a/drivers/platform/x86/hp/hp-bioscfg/enum-attributes.c
+++ b/drivers/platform/x86/hp/hp-bioscfg/enum-attributes.c

@@ -163,10 +163,11 @@ static int hp_populate_enumeration_eleme
 
 		/* Check that both expected and read object type match */
 		if (expected_enum_types[eloc] != enum_obj[elem].type) {
-			pr_err("Error expected type %d for elem %d, but got type %d instead\n",
-			       expected_enum_types[eloc], elem, enum_obj[elem].type);
+			pr_warn("Unexpected element type at elem %d: expected %d, got %d, skipping\n",
+				elem, expected_enum_types[eloc], enum_obj[elem].type);
 			kfree(str_value);
-			return -EIO;
+			str_value = NULL;
+			continue;
 		}
 
 		/* Assign appropriate element value to corresponding field */