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If no matching PD is found in ib_uverbs_reg_mr(), then the function jumps to err_release without setting the return value ret. This means that ret will hold the return value of the call to ib_umem_get() a few lines earlier; if the function reaches the point where it looks for the PD, we know that ib_umem_get() must have returned 0, so ib_uverbs_reg_mr() ends up return 0 for a bad PD ID. Fix this by setting ret to -EINVAL before jumping to the exit path when no PD is found. Signed-off-by: Roland Dreier <rolandd@cisco.com> |
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