platform/x86: hp-bioscfg: Fix kobject warnings for empty attribute names

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commit fdee1b0972 upstream.

The hp-bioscfg driver attempts to register kobjects with empty names when
the HP BIOS returns attributes with empty name strings. This causes
multiple kernel warnings:

  kobject: (00000000135fb5e6): attempted to be registered with empty name!
  WARNING: CPU: 14 PID: 3336 at lib/kobject.c:219 kobject_add_internal+0x2eb/0x310

Add validation in hp_init_bios_buffer_attribute() to check if the
attribute name is empty after parsing it from the WMI buffer. If empty,
log a debug message and skip registration of that attribute, allowing the
module to continue processing other valid attributes.

Cc: stable@vger.kernel.org
Fixes: a34fc329b1 ("platform/x86: hp-bioscfg: bioscfg")
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://patch.msgid.link/20260115203725.828434-2-mario.limonciello@amd.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>

...

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Mario Limonciello 2026-01-15 14:31:10 -06:00 • committed by Greg Kroah-Hartman

parent 83eae3692c

commit 800b276790

1 changed files with 8 additions and 0 deletions

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drivers/platform/x86/hp/hp-bioscfg/bioscfg.c

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