On 11/23/2015 09:29 AM, Wenwei Tao wrote:
free allocated nvm block and gennvm lun structures when
gennvm register fails, otherwise it will cause memory leak.
Signed-off-by: Wenwei Tao <ww.tao0320@xxxxxxxxx>
---
drivers/lightnvm/gennvm.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/lightnvm/gennvm.c b/drivers/lightnvm/gennvm.c
index ae1fb2b..03fc7a5 100644
--- a/drivers/lightnvm/gennvm.c
+++ b/drivers/lightnvm/gennvm.c
@@ -211,12 +211,15 @@ static int gennvm_register(struct nvm_dev *dev)
ret = gennvm_blocks_init(dev, gn);
if (ret) {
pr_err("gennvm: could not initialize blocks\n");
+ gennvm_blocks_free(dev);
+ gennvm_luns_free(dev);
goto err;
}
return 1;
err:
kfree(gn);
+ dev->mp = NULL;
return ret;
}
Thanks Tao, would it be okay with you if I apply the patch like this:
diff --git i/drivers/lightnvm/gennvm.c w/drivers/lightnvm/gennvm.c
index e20e74e..3969a98 100644
--- i/drivers/lightnvm/gennvm.c
+++ w/drivers/lightnvm/gennvm.c
@@ -207,6 +207,14 @@ static int gennvm_blocks_init(struct nvm_dev *dev,
struct gen_nvm *gn)
return 0;
}
+static void gennvm_free(struct nvm_dev *dev)
+{
+ gennvm_blocks_free(dev);
+ gennvm_luns_free(dev);
+ kfree(dev->mp);
+ dev->mp = NULL;
+}
+
static int gennvm_register(struct nvm_dev *dev)
{
struct gen_nvm *gn;
@@ -234,16 +242,13 @@ static int gennvm_register(struct nvm_dev *dev)
return 1;
err:
- kfree(gn);
+ gennvm_free(dev);
return ret;
}
static void gennvm_unregister(struct nvm_dev *dev)
{
- gennvm_blocks_free(dev);
- gennvm_luns_free(dev);
- kfree(dev->mp);
- dev->mp = NULL;
+ gennvm_free(dev);
}
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