From: Selvin Xavier Date: Thu, 31 Aug 2017 03:57:34 +0000 (+0530) Subject: bnxt_re: Fix memory leak in FRMR path X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=1993519be8bc86342687c61d8d11c3ade62b3b84;p=openwrt%2Fstaging%2Fblogic.git bnxt_re: Fix memory leak in FRMR path This patch fixes a memory leak issue when alloc_mr is used. mr->pages and mr->npages are used only in alloc_mr path. mr->pages is allocated when alloc_mr is called or in the case of FRMR, while creating the MR. mr->npages is updated only when the MR created is used i.e. after invoking map_mr_sg verb, before data transfer. In the dereg_mr path, if mr->npages is 0, driver ends up not freeing the memory created. Removing the npages check from the dereg_mr path for kernel consumers. Signed-off-by: Selvin Xavier Signed-off-by: Somnath Kotur Signed-off-by: Doug Ledford --- diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c b/drivers/infiniband/hw/bnxt_re/ib_verbs.c index 7430ef07a0e1..d7be4e4227ce 100644 --- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c +++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c @@ -3066,7 +3066,7 @@ int bnxt_re_dereg_mr(struct ib_mr *ib_mr) return rc; } - if (mr->npages && mr->pages) { + if (mr->pages) { rc = bnxt_qplib_free_fast_reg_page_list(&rdev->qplib_res, &mr->qplib_frpl); kfree(mr->pages);