[SCSI] fnic: remove redundant BUG_ONs and fix checks on unsigned

The shost sg tablesize is set to FNIC_MAX_SG_DESC_CNT and fnic uses
scsi_dma_map, so both BUG_ONs can be removed.

scsi_dma_map may return -ENOMEM, sg_count should be int to catch that.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

diff --git a/drivers/scsi/fnic/fnic_scsi.c b/drivers/scsi/fnic/fnic_scsi.c
index eabf365..bfc9969 100644 (file)
--- a/drivers/scsi/fnic/fnic_scsi.c
+++ b/drivers/scsi/fnic/fnic_scsi.c
@@ -245,7 +245,7 @@ static inline int fnic_queue_wq_copy_desc(struct fnic *fnic,
                                          struct vnic_wq_copy *wq,
                                          struct fnic_io_req *io_req,
                                          struct scsi_cmnd *sc,
-                                         u32 sg_count)
+                                         int sg_count)
 {
        struct scatterlist *sg;
        struct fc_rport *rport = starget_to_rport(scsi_target(sc->device));
@@ -260,9 +260,6 @@ static inline int fnic_queue_wq_copy_desc(struct fnic *fnic,
        char msg[2];
 
        if (sg_count) {
-               BUG_ON(sg_count < 0);
-               BUG_ON(sg_count > FNIC_MAX_SG_DESC_CNT);
-
                /* For each SGE, create a device desc entry */
                desc = io_req->sgl_list;
                for_each_sg(scsi_sglist(sc), sg, sg_count, i) {
@@ -344,7 +341,7 @@ int fnic_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *))
        struct fnic *fnic;
        struct vnic_wq_copy *wq;
        int ret;
-       u32 sg_count;
+       int sg_count;
        unsigned long flags;
        unsigned long ptr;