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

Arnd Bergmann
2017-04-20T17:57:22Z

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 <arnd@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