From a6e7550d8f73d6b75c20afff321f0f06fe144775 Mon Sep 17 00:00:00 2001 From: Ralph Campbell Date: Wed, 24 Oct 2007 15:49:39 -0700 Subject: [PATCH] IB/ipath: Fix memory leak in ipath_resize_cq() if copy_to_user() fails Signed-off-by: Ralph Campbell Signed-off-by: Patrick Marchand Latifi Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_cq.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/infiniband/hw/ipath/ipath_cq.c b/drivers/infiniband/hw/ipath/ipath_cq.c index 645ed71fd797..08d8ae148cd0 100644 --- a/drivers/infiniband/hw/ipath/ipath_cq.c +++ b/drivers/infiniband/hw/ipath/ipath_cq.c @@ -404,7 +404,7 @@ int ipath_resize_cq(struct ib_cq *ibcq, int cqe, struct ib_udata *udata) ret = ib_copy_to_udata(udata, &offset, sizeof(offset)); if (ret) - goto bail; + goto bail_free; } spin_lock_irq(&cq->lock); @@ -424,10 +424,8 @@ int ipath_resize_cq(struct ib_cq *ibcq, int cqe, struct ib_udata *udata) else n = head - tail; if (unlikely((u32)cqe < n)) { - spin_unlock_irq(&cq->lock); - vfree(wc); ret = -EOVERFLOW; - goto bail; + goto bail_unlock; } for (n = 0; tail != head; n++) { if (cq->ip) @@ -459,7 +457,12 @@ int ipath_resize_cq(struct ib_cq *ibcq, int cqe, struct ib_udata *udata) } ret = 0; + goto bail; +bail_unlock: + spin_unlock_irq(&cq->lock); +bail_free: + vfree(wc); bail: return ret; } -- 2.39.2