Fixes the following W=1 kernel build warning(s):

 drivers/ide/ide-acpi.c: In function ‘ide_get_dev_handle’:
 drivers/ide/ide-acpi.c:126:15: warning: variable ‘bus’ set but not used [-Wunused-but-set-variable]

Cc: "David S. Miller" <davem@davemloft.net>
Cc: linux-ide@vger.kernel.org
Signed-off-by: Lee Jones <redacted>
---
 drivers/ide/ide-acpi.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/ide/ide-acpi.c b/drivers/ide/ide-acpi.c
index 9a4ec281b9854..816ebbbf699b5 100644
--- a/drivers/ide/ide-acpi.c
+++ b/drivers/ide/ide-acpi.c

@@ -123,7 +123,8 @@ static int ide_get_dev_handle(struct device *dev, acpi_handle *handle,
 			       u64 *pcidevfn)
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
-	unsigned int bus, devnum, func;
+	unsigned int __maybe_unused bus;
+	unsigned int devnum, func;
 	u64 addr;
 	acpi_handle dev_handle;
 	acpi_status status;

-- 
2.31.1