Patch "platform/x86: wmi: move variables" has been added to the 5.10-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    platform/x86: wmi: move variables

to the 5.10-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     platform-x86-wmi-move-variables.patch
and it can be found in the queue-5.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 2b2a2dfecf816da3761256e2e96ac17431e4840c
Author: Barnabás Pőcze <pobrn@xxxxxxxxxxxxxx>
Date:   Sat Sep 4 17:56:10 2021 +0000

    platform/x86: wmi: move variables
    
    [ Upstream commit f5431bf1e6781e876bdc8ae10fb1e7da6f1aa9b5 ]
    
    Move some variables in order to keep them
    in the narrowest possible scope.
    
    Signed-off-by: Barnabás Pőcze <pobrn@xxxxxxxxxxxxxx>
    Link: https://lore.kernel.org/r/20210904175450.156801-22-pobrn@xxxxxxxxxxxxxx
    Reviewed-by: Hans de Goede <hdegoede@xxxxxxxxxx>
    Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
    Stable-dep-of: 028e6e204ace ("platform/x86: wmi: Break possible infinite loop when parsing GUID")
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c
index 18c4080d4a71e..5e4c03f7db7c0 100644
--- a/drivers/platform/x86/wmi.c
+++ b/drivers/platform/x86/wmi.c
@@ -134,7 +134,6 @@ static const void *find_guid_context(struct wmi_block *wblock,
 				      struct wmi_driver *wdriver)
 {
 	const struct wmi_device_id *id;
-	guid_t guid_input;
 
 	if (wblock == NULL || wdriver == NULL)
 		return NULL;
@@ -143,6 +142,8 @@ static const void *find_guid_context(struct wmi_block *wblock,
 
 	id = wdriver->id_table;
 	while (*id->guid_string) {
+		guid_t guid_input;
+
 		if (guid_parse(id->guid_string, &guid_input))
 			continue;
 		if (guid_equal(&wblock->gblock.guid, &guid_input))
@@ -615,7 +616,6 @@ acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out)
 {
 	struct acpi_object_list input;
 	union acpi_object params[1];
-	struct guid_block *gblock;
 	struct wmi_block *wblock;
 
 	input.count = 1;
@@ -624,7 +624,7 @@ acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out)
 	params[0].integer.value = event;
 
 	list_for_each_entry(wblock, &wmi_block_list, list) {
-		gblock = &wblock->gblock;
+		struct guid_block *gblock = &wblock->gblock;
 
 		if ((gblock->flags & ACPI_WMI_EVENT) &&
 			(gblock->notify_id == event))
@@ -1281,12 +1281,11 @@ acpi_wmi_ec_space_handler(u32 function, acpi_physical_address address,
 static void acpi_wmi_notify_handler(acpi_handle handle, u32 event,
 				    void *context)
 {
-	struct guid_block *block;
 	struct wmi_block *wblock;
 	bool found_it = false;
 
 	list_for_each_entry(wblock, &wmi_block_list, list) {
-		block = &wblock->gblock;
+		struct guid_block *block = &wblock->gblock;
 
 		if (wblock->acpi_device->handle == handle &&
 		    (block->flags & ACPI_WMI_EVENT) &&