From: Arnd Bergmann <arnd@xxxxxxxx> This patch has been added to the 4.1 stable tree. If you have any objections, please let us know. =============== [ Upstream commit b97baa3e22e18dac42001e665cf27ad1211bf878 ] The i2c client pointer is only used when CONFIG_I2C is set, and otherwise produces a compile-time warning: drivers/media/usb/hdpvr/hdpvr-core.c: In function 'hdpvr_probe': drivers/media/usb/hdpvr/hdpvr-core.c:276:21: error: unused variable 'client' [-Werror=unused-variable] This uses the same #ifdef to hide the variable when the code using it is hidden. Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx> Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx> --- drivers/media/usb/hdpvr/hdpvr-core.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/media/usb/hdpvr/hdpvr-core.c b/drivers/media/usb/hdpvr/hdpvr-core.c index 3fc64197b4e6..08f0ca7aa012 100644 --- a/drivers/media/usb/hdpvr/hdpvr-core.c +++ b/drivers/media/usb/hdpvr/hdpvr-core.c @@ -273,7 +273,9 @@ static int hdpvr_probe(struct usb_interface *interface, struct hdpvr_device *dev; struct usb_host_interface *iface_desc; struct usb_endpoint_descriptor *endpoint; +#if IS_ENABLED(CONFIG_I2C) struct i2c_client *client; +#endif size_t buffer_size; int i; int retval = -ENOMEM; -- 2.14.1