v4l: xilinx: sdirxss: Fix kbuild warning of variable used without ini…

…talizing

Fix warningi from kbuild test robot of variable being used without
initializing.

Signed-off-by: Vishal Sagar <vsagar@xilinx.com>
Reviewed-by: Hyun Kwon <hyun.kwon@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

drivers/media/platform/xilinx/xilinx-sdirxss.c

@@ -304,7 +304,7 @@ static int xsdirx_set_modedetect(struct xsdirxss_core *core, u16 mask)
 		val |= XSDIRX_MDL_CTRL_MODE_DET_EN_MASK;
 	} else {
 		/* Fixed Mode */
-		u32 forced_mode_mask;
+		u32 forced_mode_mask = 0;
 
 		dev_dbg(core->dev, "Detect fixed mode\n");