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benet: Avoid potential null deref in be_cmd_get_seeprom_data() 

Found by: Jesper Juhl <jj@chaosbits.net>

Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ajit Khaparde 2011-02-04 17:18:28 +00:00 committed by David S. Miller
parent 1e6d93e45b
commit e45ff01d3f
1 changed files with 5 additions and 0 deletions
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5
drivers/net/benet/be_cmds.c
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@ -1786,6 +1786,10 @@ int be_cmd_get_seeprom_data(struct be_adapter *adapter,
spin_lock_bh(&adapter->mcc_lock);
wrb = wrb_from_mccq(adapter);
if (!wrb) {
status = -EBUSY;
goto err;
}
req = nonemb_cmd->va;
sge = nonembedded_sgl(wrb);
@ -1801,6 +1805,7 @@ int be_cmd_get_seeprom_data(struct be_adapter *adapter,
status = be_mcc_notify_wait(adapter);
err:
spin_unlock_bh(&adapter->mcc_lock);
return status;
}