From 95b54e1e10eb32c465d1028dd119ee790afe4a01 Mon Sep 17 00:00:00 2001 From: Richard Weinberger Date: Mon, 4 Jul 2016 22:10:13 +0200 Subject: [PATCH] ubi: gluebi: Fix double refcounting There is no need to call get/put on the module reference in gluebi_get/put_device() callbacks. Since mtd->owner is the gluebi module itself mtdcore.c will take care of proper refcounting in __get/put_mtd_device() before executing the callbacks. Signed-off-by: Richard Weinberger --- drivers/mtd/ubi/gluebi.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/drivers/mtd/ubi/gluebi.c b/drivers/mtd/ubi/gluebi.c index cb7c075f2144..1cb287ec32ad 100644 --- a/drivers/mtd/ubi/gluebi.c +++ b/drivers/mtd/ubi/gluebi.c @@ -99,9 +99,6 @@ static int gluebi_get_device(struct mtd_info *mtd) struct gluebi_device *gluebi; int ubi_mode = UBI_READONLY; - if (!try_module_get(THIS_MODULE)) - return -ENODEV; - if (mtd->flags & MTD_WRITEABLE) ubi_mode = UBI_READWRITE; @@ -129,7 +126,6 @@ static int gluebi_get_device(struct mtd_info *mtd) ubi_mode); if (IS_ERR(gluebi->desc)) { mutex_unlock(&devices_mutex); - module_put(THIS_MODULE); return PTR_ERR(gluebi->desc); } gluebi->refcnt += 1; @@ -153,7 +149,6 @@ static void gluebi_put_device(struct mtd_info *mtd) gluebi->refcnt -= 1; if (gluebi->refcnt == 0) ubi_close_volume(gluebi->desc); - module_put(THIS_MODULE); mutex_unlock(&devices_mutex); } -- 2.20.1