4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Leon Romanovsky <leon@xxxxxxxxxx>
commit aa6aae38f7fb2c030f326a6dd10b58fff1851dfa upstream.
The failure in ib_cache_setup_one function during
ib_register_device will leave leaked allocated memory.
Fixes: 03db3a2d81e6 ("IB/core: Add RoCE GID table management")
Signed-off-by: Leon Romanovsky <leon@xxxxxxxxxx>
Signed-off-by: Doug Ledford <dledford@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/infiniband/core/cache.c | 16 +++++++---------
1 file changed, 7 insertions(+), 9 deletions(-)
--- a/drivers/infiniband/core/cache.c
+++ b/drivers/infiniband/core/cache.c
@@ -770,12 +770,8 @@ static int _gid_table_setup_one(struct i
int err = 0;
table = kcalloc(ib_dev->phys_port_cnt, sizeof(*table), GFP_KERNEL);
-
- if (!table) {
- pr_warn("failed to allocate ib gid cache for %s\n",
- ib_dev->name);
+ if (!table)
return -ENOMEM;
- }
for (port = 0; port < ib_dev->phys_port_cnt; port++) {
u8 rdma_port = port + rdma_start_port(ib_dev);
@@ -1170,14 +1166,13 @@ int ib_cache_setup_one(struct ib_device
GFP_KERNEL);
if (!device->cache.pkey_cache ||
!device->cache.lmc_cache) {
- pr_warn("Couldn't allocate cache for %s\n", device->name);
- return -ENOMEM;
+ err = -ENOMEM;
+ goto free;
}
err = gid_table_setup_one(device);
if (err)
- /* Allocated memory will be cleaned in the release function */
- return err;
+ goto free;
for (p = 0; p <= rdma_end_port(device) - rdma_start_port(device); ++p)
ib_cache_update(device, p + rdma_start_port(device));
@@ -1192,6 +1187,9 @@ int ib_cache_setup_one(struct ib_device
err:
gid_table_cleanup_one(device);
+free:
+ kfree(device->cache.pkey_cache);
+ kfree(device->cache.lmc_cache);
return err;
}
--
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