9f21316fc2
Fixes the following smatch warnings:
drivers/message/fusion/mptbase.c:652 mptbase_reply() warn: variable
dereferenced before check 'reply' (see line 639)
[JL: No-brainer, the enclosing switch statement dereferences
reply, so we can't get here unless reply is valid.]
drivers/message/fusion/mptsas.c:1255 mptsas_taskmgmt_complete() error:
we previously assumed 'pScsiTmReply' could be null (see line 1227)
[HCH: Reading the code in mptsas_taskmgmt_complete it's pretty
obvious that it can't do anything useful if mr/pScsiTmReply are
NULL, so I suspect it would be best to just return at the
beginning of the function.
I'd love to understand if it actually could ever be zero, which I
doubt. Maybe the LSI people can shed some light on that?]
drivers/message/fusion/mptsas.c:3888 mptsas_not_responding_devices()
error: we previously assumed 'port_info->phy_info' could be null
(see line 3875)
[HCH: It's pretty obvious from reading mptsas_sas_io_unit_pg0 that
we never register a port_info with a NULL phy_info in the lists,
so all NULL checks on it could be deleted.]
drivers/message/fusion/mptscsih.c:1284 mptscsih_info() error:
we previously assumed 'h' could be null (see line 1274)
[HCH: shost_priv can't return NULL, so the if (h) should be
removed.]
drivers/message/fusion/mptscsih.c:1388 mptscsih_qcmd() error: we
previously assumed 'vdevice' could be null (see line 1373)
[HCH: vdevice can't ever be NULL here, it's allocated in
->slave_alloc and thus guaranteed to be around when
->queuecommand is called.]
Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com>
Acked-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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