From 098e345a1a8faaad6e4e54d138773466cecc45d4 Mon Sep 17 00:00:00 2001
From: Michal Kalderon <michal.kalderon@marvell.com>
Date: Wed, 2 Sep 2020 19:57:34 +0300
Subject: [PATCH 1/1] RDMA/qedr: Fix qp structure memory leak
Git-commit: 098e345a1a8faaad6e4e54d138773466cecc45d4
Patch-mainline: v5.10-rc1
References: bsc#1152489
The qedr_qp structure wasn't freed when the protocol was RoCE. kmemleak
output when running basic RoCE scenario.
unreferenced object 0xffff927ad7e22c00 (size 1024):
comm "ib_send_bw", pid 7082, jiffies 4384133693 (age 274.698s)
hex dump (first 32 bytes):
00 b0 cd a2 79 92 ff ff 00 3f a1 a2 79 92 ff ff ....y....?..y...
00 ee 5c dd 80 92 ff ff 00 f6 5c dd 80 92 ff ff ..\.......\.....
backtrace:
[<00000000b2ba0f35>] qedr_create_qp+0xb3/0x6c0 [qedr]
[<00000000e85a43dd>] ib_uverbs_handler_UVERBS_METHOD_QP_CREATE+0x555/0xad0 [ib_uverbs]
[<00000000fee4d029>] ib_uverbs_cmd_verbs+0xa5a/0xb80 [ib_uverbs]
[<000000005d622660>] ib_uverbs_ioctl+0xa4/0x110 [ib_uverbs]
[<00000000eb4cdc71>] ksys_ioctl+0x87/0xc0
[<00000000abe6b23a>] __x64_sys_ioctl+0x16/0x20
[<0000000046e7cef4>] do_syscall_64+0x4d/0x90
[<00000000c6948f76>] entry_SYSCALL_64_after_hwframe+0x44/0xa9
Fixes: 1212767e23bb ("qedr: Add wrapping generic structure for qpidr and adjust idr routines.")
Link: https://lore.kernel.org/r/20200902165741.8355-2-michal.kalderon@marvell.com
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Acked-by: Nicolas Morey-Chaisemartin <nmoreychaisemartin@suse.com>
---
drivers/infiniband/hw/qedr/verbs.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/infiniband/hw/qedr/verbs.c b/drivers/infiniband/hw/qedr/verbs.c
index f7bfc43f0f5c..bf5fa8db7837 100644
--- a/drivers/infiniband/hw/qedr/verbs.c
+++ b/drivers/infiniband/hw/qedr/verbs.c
@@ -2744,6 +2744,8 @@ int qedr_destroy_qp(struct ib_qp *ibqp, struct ib_udata *udata)
if (rdma_protocol_iwarp(&dev->ibdev, 1))
qedr_iw_qp_rem_ref(&qp->ibqp);
+ else
+ kfree(qp);
return 0;
}
--
2.29.2.405.gfdfcad78fd04