sg driver rounds up the length in struct scatterlist to be a multiple
of 512 in some conditions. So LLDs can't use the data length in a sg
list to calculate residual. Instead, the length in struct scsi_cmnd
should be used.
[Geert: the variable buflen already contains scsi_bufflen(cmd)]
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
}
req_len += sgpnt->length;
}
- scsi_set_resid(cmd, req_len - act_len);
+ scsi_set_resid(cmd, buflen - act_len);
return 0;
}