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iwlwifi: mvm: use a cast to calculate the last seqno from the next one

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If the next seqno returned by the firmware is 0, we return an error
(-16) in the iwl_mvm_get_last_nonqos_seq() function.  This is because
we return an integer and don't use any casting when calculating the
last seqno from the one we received.  Fix this by using a cast to u16
when doing the calculation, so we return 0xfff0, as we should.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Luciano Coelho 2013-11-19 16:05:56 +02:00 committed by Emmanuel Grumbach
parent cfa8889370
commit 3c5da7eefc
1 changed files with 1 additions and 1 deletions
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drivers/net/wireless/iwlwifi/mvm/d3.c
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@ -895,7 +895,7 @@ static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm *mvm,
/* new API returns next, not last-used seqno */
if (mvm->fw->ucode_capa.flags &
IWL_UCODE_TLV_FLAGS_D3_CONTINUITY_API)
err -= 0x10;
err = (u16) (err - 0x10);
}
iwl_free_resp(&cmd);