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IB/ipath: Fix memory leak in ipath_resize_cq() if copy_to_user() fails

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Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Patrick Marchand Latifi <patrick.latifi@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Ralph Campbell 2007-10-24 15:49:39 -07:00 committed by Roland Dreier
parent 3bba11e5c4
commit a6e7550d8f
1 changed files with 7 additions and 4 deletions
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11
drivers/infiniband/hw/ipath/ipath_cq.c
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@ -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;
}