[SCSI] hpsa: Check for dma_mapping_error for all code paths using fill_cmd
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
parent
eceaae187d
commit
a2dac136c4
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@ -165,7 +165,7 @@ static void cmd_free(struct ctlr_info *h, struct CommandList *c);
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static void cmd_special_free(struct ctlr_info *h, struct CommandList *c);
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static struct CommandList *cmd_alloc(struct ctlr_info *h);
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static struct CommandList *cmd_special_alloc(struct ctlr_info *h);
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static void fill_cmd(struct CommandList *c, u8 cmd, struct ctlr_info *h,
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static int fill_cmd(struct CommandList *c, u8 cmd, struct ctlr_info *h,
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void *buff, size_t size, u8 page_code, unsigned char *scsi3addr,
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int cmd_type);
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@ -1390,7 +1390,7 @@ static void hpsa_pci_unmap(struct pci_dev *pdev,
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}
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}
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static void hpsa_map_one(struct pci_dev *pdev,
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static int hpsa_map_one(struct pci_dev *pdev,
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struct CommandList *cp,
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unsigned char *buf,
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size_t buflen,
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@ -1401,14 +1401,15 @@ static void hpsa_map_one(struct pci_dev *pdev,
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if (buflen == 0 || data_direction == PCI_DMA_NONE) {
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cp->Header.SGList = 0;
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cp->Header.SGTotal = 0;
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return;
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return 0;
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}
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addr64 = (u64) pci_map_single(pdev, buf, buflen, data_direction);
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if (dma_mapping_error(&pdev->dev, addr64)) {
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/* Prevent subsequent unmap of something never mapped */
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cp->Header.SGList = 0;
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cp->Header.SGTotal = 0;
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return;
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return -1;
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}
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cp->SG[0].Addr.lower =
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(u32) (addr64 & (u64) 0x00000000FFFFFFFF);
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@ -1417,6 +1418,7 @@ static void hpsa_map_one(struct pci_dev *pdev,
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cp->SG[0].Len = buflen;
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cp->Header.SGList = (u8) 1; /* no. SGs contig in this cmd */
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cp->Header.SGTotal = (u16) 1; /* total sgs in this cmd list */
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return 0;
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}
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static inline void hpsa_scsi_do_simple_cmd_core(struct ctlr_info *h,
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@ -1545,13 +1547,18 @@ static int hpsa_scsi_do_inquiry(struct ctlr_info *h, unsigned char *scsi3addr,
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return -ENOMEM;
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}
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fill_cmd(c, HPSA_INQUIRY, h, buf, bufsize, page, scsi3addr, TYPE_CMD);
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if (fill_cmd(c, HPSA_INQUIRY, h, buf, bufsize,
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page, scsi3addr, TYPE_CMD)) {
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rc = -1;
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goto out;
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}
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hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_FROMDEVICE);
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ei = c->err_info;
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if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) {
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hpsa_scsi_interpret_error(c);
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rc = -1;
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}
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out:
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cmd_special_free(h, c);
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return rc;
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}
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@ -1569,7 +1576,9 @@ static int hpsa_send_reset(struct ctlr_info *h, unsigned char *scsi3addr)
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return -ENOMEM;
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}
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fill_cmd(c, HPSA_DEVICE_RESET_MSG, h, NULL, 0, 0, scsi3addr, TYPE_MSG);
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/* fill_cmd can't fail here, no data buffer to map. */
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(void) fill_cmd(c, HPSA_DEVICE_RESET_MSG, h,
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NULL, 0, 0, scsi3addr, TYPE_MSG);
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hpsa_scsi_do_simple_cmd_core(h, c);
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/* no unmap needed here because no data xfer. */
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@ -1636,8 +1645,11 @@ static int hpsa_scsi_do_report_luns(struct ctlr_info *h, int logical,
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}
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/* address the controller */
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memset(scsi3addr, 0, sizeof(scsi3addr));
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fill_cmd(c, logical ? HPSA_REPORT_LOG : HPSA_REPORT_PHYS, h,
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buf, bufsize, 0, scsi3addr, TYPE_CMD);
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if (fill_cmd(c, logical ? HPSA_REPORT_LOG : HPSA_REPORT_PHYS, h,
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buf, bufsize, 0, scsi3addr, TYPE_CMD)) {
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rc = -1;
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goto out;
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}
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if (extended_response)
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c->Request.CDB[1] = extended_response;
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hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_FROMDEVICE);
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@ -1647,6 +1659,7 @@ static int hpsa_scsi_do_report_luns(struct ctlr_info *h, int logical,
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hpsa_scsi_interpret_error(c);
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rc = -1;
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}
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out:
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cmd_special_free(h, c);
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return rc;
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}
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@ -2358,8 +2371,9 @@ static int wait_for_device_to_become_ready(struct ctlr_info *h,
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if (waittime < HPSA_MAX_WAIT_INTERVAL_SECS)
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waittime = waittime * 2;
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/* Send the Test Unit Ready */
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fill_cmd(c, TEST_UNIT_READY, h, NULL, 0, 0, lunaddr, TYPE_CMD);
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/* Send the Test Unit Ready, fill_cmd can't fail, no mapping */
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(void) fill_cmd(c, TEST_UNIT_READY, h,
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NULL, 0, 0, lunaddr, TYPE_CMD);
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hpsa_scsi_do_simple_cmd_core(h, c);
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/* no unmap needed here because no data xfer. */
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@ -2444,7 +2458,9 @@ static int hpsa_send_abort(struct ctlr_info *h, unsigned char *scsi3addr,
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return -ENOMEM;
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}
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fill_cmd(c, HPSA_ABORT_MSG, h, abort, 0, 0, scsi3addr, TYPE_MSG);
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/* fill_cmd can't fail here, no buffer to map */
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(void) fill_cmd(c, HPSA_ABORT_MSG, h, abort,
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0, 0, scsi3addr, TYPE_MSG);
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if (swizzle)
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swizzle_abort_tag(&c->Request.CDB[4]);
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hpsa_scsi_do_simple_cmd_core(h, c);
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@ -3195,7 +3211,8 @@ static int hpsa_send_host_reset(struct ctlr_info *h, unsigned char *scsi3addr,
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c = cmd_alloc(h);
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if (!c)
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return -ENOMEM;
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fill_cmd(c, HPSA_DEVICE_RESET_MSG, h, NULL, 0, 0,
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/* fill_cmd can't fail here, no data buffer to map */
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(void) fill_cmd(c, HPSA_DEVICE_RESET_MSG, h, NULL, 0, 0,
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RAID_CTLR_LUNID, TYPE_MSG);
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c->Request.CDB[1] = reset_type; /* fill_cmd defaults to target reset */
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c->waiting = NULL;
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@ -3207,7 +3224,7 @@ static int hpsa_send_host_reset(struct ctlr_info *h, unsigned char *scsi3addr,
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return 0;
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}
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static void fill_cmd(struct CommandList *c, u8 cmd, struct ctlr_info *h,
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static int fill_cmd(struct CommandList *c, u8 cmd, struct ctlr_info *h,
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void *buff, size_t size, u8 page_code, unsigned char *scsi3addr,
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int cmd_type)
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{
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@ -3276,7 +3293,7 @@ static void fill_cmd(struct CommandList *c, u8 cmd, struct ctlr_info *h,
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default:
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dev_warn(&h->pdev->dev, "unknown command 0x%c\n", cmd);
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BUG();
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return;
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return -1;
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}
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} else if (cmd_type == TYPE_MSG) {
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switch (cmd) {
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@ -3348,10 +3365,9 @@ static void fill_cmd(struct CommandList *c, u8 cmd, struct ctlr_info *h,
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default:
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pci_dir = PCI_DMA_BIDIRECTIONAL;
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}
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hpsa_map_one(h->pdev, c, buff, size, pci_dir);
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return;
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if (hpsa_map_one(h->pdev, c, buff, size, pci_dir))
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return -1;
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return 0;
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}
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/*
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@ -4887,10 +4903,13 @@ static void hpsa_flush_cache(struct ctlr_info *h)
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dev_warn(&h->pdev->dev, "cmd_special_alloc returned NULL!\n");
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goto out_of_memory;
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}
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fill_cmd(c, HPSA_CACHE_FLUSH, h, flush_buf, 4, 0,
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RAID_CTLR_LUNID, TYPE_CMD);
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if (fill_cmd(c, HPSA_CACHE_FLUSH, h, flush_buf, 4, 0,
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RAID_CTLR_LUNID, TYPE_CMD)) {
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goto out;
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}
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hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_TODEVICE);
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if (c->err_info->CommandStatus != 0)
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out:
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dev_warn(&h->pdev->dev,
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"error flushing cache on controller\n");
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cmd_special_free(h, c);
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