Re: [SCSI] bfa: Implement LUN Masking feature using the SCSI Slave Callouts.

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Hi,

This bug is still present in linux-next.

regards,
dan carpenter

On Wed, Jan 11, 2012 at 12:32:34PM +0300, Dan Carpenter wrote:
> Hello Krishna Gudipati,
> 
> This is a semi-automatic email about new static checker warnings.
> 
> The patch 5b7db7af522d: "[SCSI] bfa: Implement LUN Masking feature 
> using the SCSI Slave Callouts." from Dec 20, 2011, leads to the 
> following Smatch complaint:
> 
> drivers/scsi/bfa/bfad_im.c +962 bfad_im_slave_alloc()
> 	 warn: variable dereferenced before check 'rport' (see line 959)
> 
> drivers/scsi/bfa/bfad_im.c
>    957          struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
>    958		struct bfad_itnim_data_s *itnim_data =
>    959					(struct bfad_itnim_data_s *) rport->dd_data;
>                                                                      ^^^^^^^
> New dereference.
> 
>    960		struct bfa_s *bfa = itnim_data->itnim->bfa_itnim->bfa;
>    961	
>    962		if (!rport || fc_remote_port_chkready(rport))
>                      ^^^^^
> Old check.
> 
>    963			return -ENXIO;
>    964	
> 
> regards,
> dan carpenter
> 
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