fbdev: sh_mobile_lcdc: Destroy mutex at remove time

Add a missing mutex_destroy() call when the driver is unbound from the
device.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 5 insertions, 2 deletions

diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c
index 9da4b1b619e6..644c2309a49a 100644
--- a/drivers/video/sh_mobile_lcdcfb.c
+++ b/drivers/video/sh_mobile_lcdcfb.c
@@ -2444,8 +2444,11 @@ static int sh_mobile_lcdc_remove(struct platform_device *pdev)
         }
 
         for (i = 0; i < ARRAY_SIZE(priv->ch); i++) {
-                if (priv->ch[i].bl)
-                        sh_mobile_lcdc_bl_remove(priv->ch[i].bl);
+                struct sh_mobile_lcdc_chan *ch = &priv->ch[i];
+
+                if (ch->bl)
+                        sh_mobile_lcdc_bl_remove(ch->bl);
+                mutex_destroy(&ch->open_lock);
         }
 
         if (priv->dot_clk) {