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authorSelvin Xavier <selvin.xavier@broadcom.com>2017-08-31 05:57:34 +0200
committerDoug Ledford <dledford@redhat.com>2017-09-22 19:57:33 +0200
commit1993519be8bc86342687c61d8d11c3ade62b3b84 (patch)
treedb6cbdbbb27b17c695418327fea93e00b934a15f /drivers
parentbnxt_re: Remove RTNL lock dependency in bnxt_re_query_port (diff)
downloadlinux-1993519be8bc86342687c61d8d11c3ade62b3b84.tar.xz
linux-1993519be8bc86342687c61d8d11c3ade62b3b84.zip
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 <selvin.xavier@broadcom.com> Signed-off-by: Somnath Kotur <somnath.kotur@broadcom.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/infiniband/hw/bnxt_re/ib_verbs.c2
1 files changed, 1 insertions, 1 deletions
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);