we are allocating cxt->oops_page_used using vmalloc in mtdoops_notify_add for
every mtd_info addition but not freeing it in mtdoops_notify_remove. Also care
is
taken so that we do not free the same pointer again in module remove.
Signed-off-by: Nilanjan Roychowdhury <nilanjan.roychowdh...@gmail.com>
---
drivers/mtd/mtdoops.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/mtdoops.c b/drivers/mtd/mtdoops.c
index 97bb8f6..4b8b621 100644
--- a/drivers/mtd/mtdoops.c
+++ b/drivers/mtd/mtdoops.c
@@ -386,6 +386,8 @@ static void mtdoops_notify_remove(struct mtd_info *mtd)
cxt->mtd = NULL;
flush_work(&cxt->work_erase);
flush_work(&cxt->work_write);
+ vfree(cxt->oops_page_used);
+ cxt->oops_page_used = NULL;
}
@@ -439,7 +441,8 @@ static void __exit mtdoops_exit(void)
unregister_mtd_user(&mtdoops_notifier);
vfree(cxt->oops_buf);
- vfree(cxt->oops_page_used);
+ if (cxt->oops_page_used)
+ vfree(cxt->oops_page_used);
}
--
1.7.9.5
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