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IB/mthca: fix return value of error branch in mthca_init_cq()
[ Upstream commit 6830ff8 ] We return 'err' in the error branch, but this variable may be set as zero by the above code. Fix it by setting 'err' as a negative value before we goto the error label. Fixes: 74c2174 ("IB uverbs: add mthca user CQ support") Fixes: 1da177e ("Linux-2.6.12-rc2") Link: https://lore.kernel.org/r/1605837422-42724-1-git-send-email-wangxiongfeng2@huawei.com Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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