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IB/mthca: Free correct MPT on error exit from mthca_fmr_alloc()

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When mthca_fmr_alloc() returns an error, it should free the MPT at the
index key, not mr->ibmr.lkey, since the lkey has been mangled by
hw_index_to_key() and no longer is the real index.  This bug causes
corruption of the MPT table free bitmap when mthca_fmr_alloc() fails.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Roland Dreier 2008-02-19 10:42:50 -08:00
parent ec229e5e81
commit b7f9c112a5
1 changed files with 1 additions and 1 deletions
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2
drivers/infiniband/hw/mthca/mthca_mr.c
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@ -686,7 +686,7 @@ int mthca_fmr_alloc(struct mthca_dev *dev, u32 pd,
mthca_table_put(dev, dev->mr_table.mpt_table, key);
err_out_mpt_free:
mthca_free(&dev->mr_table.mpt_alloc, mr->ibmr.lkey);
mthca_free(&dev->mr_table.mpt_alloc, key);
return err;
}