From: Igor Konopko <[email protected]> Currently in case of error caused by bio_pc_add_page in pblk_bio_add_pages two issues occur when calling from pblk_rb_read_to_bio(). First one is in pblk_bio_free_pages, since we are trying to free pages not allocated from our mempool. Second one is the warn from dma_pool_free, that we are trying to free NULL pointer dma.
This commit fix both issues. Signed-off-by: Igor Konopko <[email protected]> Signed-off-by: Marcin Dziegielewski <[email protected]> Signed-off-by: Matias Bjørling <[email protected]> --- drivers/lightnvm/pblk-core.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/lightnvm/pblk-core.c b/drivers/lightnvm/pblk-core.c index e43093e27084..a20b41c355c5 100644 --- a/drivers/lightnvm/pblk-core.c +++ b/drivers/lightnvm/pblk-core.c @@ -278,7 +278,9 @@ void pblk_free_rqd(struct pblk *pblk, struct nvm_rq *rqd, int type) return; } - nvm_dev_dma_free(dev->parent, rqd->meta_list, rqd->dma_meta_list); + if (rqd->meta_list) + nvm_dev_dma_free(dev->parent, rqd->meta_list, + rqd->dma_meta_list); mempool_free(rqd, pool); } @@ -316,7 +318,7 @@ int pblk_bio_add_pages(struct pblk *pblk, struct bio *bio, gfp_t flags, return 0; err: - pblk_bio_free_pages(pblk, bio, 0, i - 1); + pblk_bio_free_pages(pblk, bio, (bio->bi_vcnt - i), i); return -1; } -- 2.11.0
