[PATCH] PCI: Add const type for comparison function parameter

[Kai-Heng Feng]

Commit 4f0f586bf0c8 ("treewide: Change list_sort to use const pointers")
added const on parameter "struct list_head *".

So add const to match the type.

Fixes: 276b15de5287 ("PCI: Coalesce host bridge contiguous apertures")
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx>
---
 drivers/pci/probe.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index bf58e5dd1d82..bd862b612633 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -875,7 +875,8 @@ static void pci_set_bus_msi_domain(struct pci_bus *bus)
 	dev_set_msi_domain(&bus->dev, d);
 }
 
-static int res_cmp(void *priv, struct list_head *a, struct list_head *b)
+static int res_cmp(void *priv, const struct list_head *a,
+		   const struct list_head *b)
 {
 	struct resource_entry *entry1, *entry2;
 
-- 
2.31.1