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Subject[PATCH 4.19 079/639] IB/rxe: Fix incorrect cache cleanup in error flow
Date
From: Yuval Shaia <yuval.shaia@oracle.com>

[ Upstream commit 6db21d8986e14e2e86573a3b055b05296188bd2c ]

Array iterator stays at the same slot, fix it.

Fixes: 8700e3e7c485 ("Soft RoCE driver")
Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Zhu Yanjun <yanjun.zhu@oracle.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/sw/rxe/rxe_pool.c | 26 ++++++++++++++------------
1 file changed, 14 insertions(+), 12 deletions(-)

diff --git a/drivers/infiniband/sw/rxe/rxe_pool.c b/drivers/infiniband/sw/rxe/rxe_pool.c
index b4a8acc7bb7d6..0e2425f282335 100644
--- a/drivers/infiniband/sw/rxe/rxe_pool.c
+++ b/drivers/infiniband/sw/rxe/rxe_pool.c
@@ -112,6 +112,18 @@ static inline struct kmem_cache *pool_cache(struct rxe_pool *pool)
return rxe_type_info[pool->type].cache;
}

+static void rxe_cache_clean(size_t cnt)
+{
+ int i;
+ struct rxe_type_info *type;
+
+ for (i = 0; i < cnt; i++) {
+ type = &rxe_type_info[i];
+ kmem_cache_destroy(type->cache);
+ type->cache = NULL;
+ }
+}
+
int rxe_cache_init(void)
{
int err;
@@ -136,24 +148,14 @@ int rxe_cache_init(void)
return 0;

err1:
- while (--i >= 0) {
- kmem_cache_destroy(type->cache);
- type->cache = NULL;
- }
+ rxe_cache_clean(i);

return err;
}

void rxe_cache_exit(void)
{
- int i;
- struct rxe_type_info *type;
-
- for (i = 0; i < RXE_NUM_TYPES; i++) {
- type = &rxe_type_info[i];
- kmem_cache_destroy(type->cache);
- type->cache = NULL;
- }
+ rxe_cache_clean(RXE_NUM_TYPES);
}

static int rxe_pool_init_index(struct rxe_pool *pool, u32 max, u32 min)
--
2.20.1


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