Four small fixes, three in drivers. The core fix is yet another
attempt to insulate us from UFS devices' weird behaviour for VPD pages.
The patch is available here:
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi.git scsi-fixes
The short changelog is:
Damien Le Moal (1):
scsi: core: Improve scsi_vpd_inquiry() checks
Jerry Snitselaar (1):
scsi: mpt3sas: Don't print sense pool info twice
Tomas Henzl (2):
scsi: megaraid_sas: Fix crash after a double completion
scsi: megaraid_sas: Fix fw_crash_buffer_show()
And the diffstat:
drivers/scsi/megaraid/megaraid_sas_base.c | 2 +-
drivers/scsi/megaraid/megaraid_sas_fusion.c | 4 ++--
drivers/scsi/mpt3sas/mpt3sas_base.c | 5 -----
drivers/scsi/scsi.c | 11 +++++++++--
4 files changed, 12 insertions(+), 10 deletions(-)
With full diff below.
James
---
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index 3ceece988338..c895189375e2 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -3298,7 +3298,7 @@ fw_crash_buffer_show(struct device *cdev,
spin_lock_irqsave(&instance->crashdump_lock, flags);
buff_offset = instance->fw_crash_buffer_offset;
- if (!instance->crash_dump_buf &&
+ if (!instance->crash_dump_buf ||
!((instance->fw_crash_state == AVAILABLE) ||
(instance->fw_crash_state == COPYING))) {
dev_err(&instance->pdev->dev,
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index 84c9a55a5794..8a83f3fc2b86 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -4771,7 +4771,7 @@ int megasas_task_abort_fusion(struct scsi_cmnd *scmd)
devhandle = megasas_get_tm_devhandle(scmd->device);
if (devhandle == (u16)ULONG_MAX) {
- ret = SUCCESS;
+ ret = FAILED;
sdev_printk(KERN_INFO, scmd->device,
"task abort issued for invalid devhandle\n");
mutex_unlock(&instance->reset_mutex);
@@ -4841,7 +4841,7 @@ int megasas_reset_target_fusion(struct scsi_cmnd *scmd)
devhandle = megasas_get_tm_devhandle(scmd->device);
if (devhandle == (u16)ULONG_MAX) {
- ret = SUCCESS;
+ ret = FAILED;
sdev_printk(KERN_INFO, scmd->device,
"target reset issued for invalid devhandle\n");
mutex_unlock(&instance->reset_mutex);
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c
index 2ee9ea57554d..14ae0a9c5d3d 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
@@ -6616,11 +6616,6 @@ _base_allocate_memory_pools(struct MPT3SAS_ADAPTER *ioc)
else if (rc == -EAGAIN)
goto try_32bit_dma;
total_sz += sense_sz;
- ioc_info(ioc,
- "sense pool(0x%p)- dma(0x%llx): depth(%d),"
- "element_size(%d), pool_size(%d kB)\n",
- ioc->sense, (unsigned long long)ioc->sense_dma, ioc->scsiio_depth,
- SCSI_SENSE_BUFFERSIZE, sz / 1024);
/* reply pool, 4 byte align */
sz = ioc->reply_free_queue_depth * ioc->reply_sz;
rc = _base_allocate_reply_pool(ioc, sz);
diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index 5cce1ba70fc6..09ef0b31dfc0 100644
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -314,11 +314,18 @@ static int scsi_vpd_inquiry(struct scsi_device *sdev, unsigned char *buffer,
if (result)
return -EIO;
- /* Sanity check that we got the page back that we asked for */
+ /*
+ * Sanity check that we got the page back that we asked for and that
+ * the page size is not 0.
+ */
if (buffer[1] != page)
return -EIO;
- return get_unaligned_be16(&buffer[2]) + 4;
+ result = get_unaligned_be16(&buffer[2]);
+ if (!result)
+ return -EIO;
+
+ return result + 4;
}
static int scsi_get_vpd_size(struct scsi_device *sdev, u8 page)
