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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2023-06-21 17:11:55 +0200
committerHans de Goede <hdegoede@redhat.com>2023-07-10 14:48:42 +0200
commit6bf06f14bf33d668ee0eb85b6c414d85a0f8e1a5 (patch)
tree7cbebb96f474548ab10535cd40127f91eef6b0e9 /drivers/platform
parentplatform/x86: wmi: Break possible infinite loop when parsing GUID (diff)
downloadlinux-6bf06f14bf33d668ee0eb85b6c414d85a0f8e1a5.tar.xz
linux-6bf06f14bf33d668ee0eb85b6c414d85a0f8e1a5.zip
platform/x86: wmi: Replace open coded guid_parse_and_compare()
Even though we have no issues in the code, let's replace the open coded guid_parse_and_compare(). Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20230621151155.78279-2-andriy.shevchenko@linux.intel.com Tested-by: Armin Wolf <W_Armin@gmx.de> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'drivers/platform')
-rw-r--r--drivers/platform/x86/wmi.c6
1 files changed, 1 insertions, 5 deletions
diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c
index 098512a53170..a78ddd83cda0 100644
--- a/drivers/platform/x86/wmi.c
+++ b/drivers/platform/x86/wmi.c
@@ -1241,11 +1241,7 @@ static bool guid_already_parsed_for_legacy(struct acpi_device *device, const gui
list_for_each_entry(wblock, &wmi_block_list, list) {
/* skip warning and register if we know the driver will use struct wmi_driver */
for (int i = 0; allow_duplicates[i] != NULL; i++) {
- guid_t tmp;
-
- if (guid_parse(allow_duplicates[i], &tmp))
- continue;
- if (guid_equal(&tmp, guid))
+ if (guid_parse_and_compare(allow_duplicates[i], guid))
return false;
}
if (guid_equal(&wblock->gblock.guid, guid)) {