[PATCH] staging: most: cdev: fix chrdev_region leak in mod_exit

[Eugeniu Rosca]

From: Suresh Udipi <sudipi@xxxxxxxxxxxxxx>

It looks like v4.18-rc1 commit [0] which upstreams mld-1.8.0
commit [1] missed to fix the memory leak in mod_exit function.

Do it now.

[0] aba258b7310167 ("staging: most: cdev: fix chrdev_region leak")
[1] https://github.com/microchip-ais/linux/commit/a2d8f7ae7ea381
    ("staging: most: cdev: fix leak for chrdev_region")

Signed-off-by: Suresh Udipi <sudipi@xxxxxxxxxxxxxx>
Signed-off-by: Eugeniu Rosca <erosca@xxxxxxxxxxxxxx>
---
 drivers/staging/most/cdev/cdev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/most/cdev/cdev.c b/drivers/staging/most/cdev/cdev.c
index f2b347cda8b7..d5f236889021 100644
--- a/drivers/staging/most/cdev/cdev.c
+++ b/drivers/staging/most/cdev/cdev.c
@@ -549,7 +549,7 @@ static void __exit mod_exit(void)
 		destroy_cdev(c);
 		destroy_channel(c);
 	}
-	unregister_chrdev_region(comp.devno, 1);
+	unregister_chrdev_region(comp.devno, CHRDEV_REGION_SIZE);
 	ida_destroy(&comp.minor_id);
 	class_destroy(comp.class);
 }
-- 
2.21.0