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lightnvm: free memory when gennvm register fails

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free allocated nvm block and gennvm lun structures when
gennvm register fails, otherwise it will cause memory leak.

Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Wenwei Tao 2015-11-28 16:49:23 +01:00 committed by Jens Axboe
parent c4699e70d1
commit 8261bd48c6
1 changed files with 10 additions and 5 deletions
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15
drivers/lightnvm/gennvm.c
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@ -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);
}
static struct nvm_block *gennvm_get_blk(struct nvm_dev *dev,