[PATCH 4/4] scsi: pmcraid: fix minor sparse warnings

[Arnd Bergmann]

pmcraid_minor is only used in this one file and should be 'static' as suggested
by sparse:

drivers/scsi/pmcraid.c:80:1: warning: symbol 'pmcraid_minor' was not declared. 
Should it be static?

In Linux coding style, a literal '0' integer should not be used to represent
a NULL pointer:

drivers/scsi/pmcraid.c:348:29: warning: Using plain integer as NULL pointer
drivers/scsi/pmcraid.c:4824:49: warning: Using plain integer as NULL pointer

Signed-off-by: Arnd Bergmann <a...@arndb.de>
---
 drivers/scsi/pmcraid.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
index 58c7511c5bd5..63298f017171 100644
--- a/drivers/scsi/pmcraid.c
+++ b/drivers/scsi/pmcraid.c
@@ -77,7 +77,7 @@ static atomic_t pmcraid_adapter_count = ATOMIC_INIT(0);
  */
 static unsigned int pmcraid_major;
 static struct class *pmcraid_class;
-DECLARE_BITMAP(pmcraid_minor, PMCRAID_MAX_ADAPTERS);
+static DECLARE_BITMAP(pmcraid_minor, PMCRAID_MAX_ADAPTERS);
 
 /*
  * Module parameters
@@ -345,7 +345,7 @@ static void pmcraid_init_cmdblk(struct pmcraid_cmd *cmd, 
int index)
        cmd->scsi_cmd = NULL;
        cmd->release = 0;
        cmd->completion_req = 0;
-       cmd->sense_buffer = 0;
+       cmd->sense_buffer = NULL;
        cmd->sense_buffer_dma = 0;
        cmd->dma_handle = 0;
        init_timer(&cmd->timer);
@@ -4824,7 +4824,7 @@ static int pmcraid_allocate_host_rrqs(struct 
pmcraid_instance *pinstance)
                                        buffer_size,
                                        &(pinstance->hrrq_start_bus_addr[i]));
 
-               if (pinstance->hrrq_start[i] == 0) {
+               if (!pinstance->hrrq_start[i]) {
                        pmcraid_err("pci_alloc failed for hrrq vector : %d\n",
                                    i);
                        pmcraid_release_host_rrqs(pinstance, i);
-- 
2.9.0