scsi: fix integer as NULL pointer warnings

drivers/scsi/aic7xxx/aic7770_osm.c:53:58: warning: Using plain integer as NULL pointer
drivers/scsi/aic7xxx/aic7xxx_osm_pci.c:355:47: warning: Using plain integer as NULL pointer
drivers/scsi/aic7xxx/aic7xxx_osm_pci.c:372:55: warning: Using plain integer as NULL pointer
drivers/scsi/aha152x.c:997:28: warning: Using plain integer as NULL pointer
drivers/scsi/aha152x.c:1003:28: warning: Using plain integer as NULL pointer
drivers/scsi/aha152x.c:1165:46: warning: Using plain integer as NULL pointer
drivers/scsi/fdomain.c:1446:40: warning: Using plain integer as NULL pointer
drivers/scsi/sym53c8xx_2/sym_hipd.c:1650:51: warning: Using plain integer as NULL pointer
drivers/scsi/sym53c8xx_2/sym_hipd.c:3171:42: warning: Using plain integer as NULL pointer
drivers/scsi/sym53c8xx_2/sym_hipd.c:5732:52: warning: Using plain integer as NULL pointer
drivers/scsi/ncr53c8xx.c:8189:31: warning: Using plain integer as NULL pointer
drivers/scsi/ncr53c8xx.c:8225:34: warning: Using plain integer as NULL pointer
drivers/scsi/dpt_i2o.c:156:32: warning: Using plain integer as NULL pointer
drivers/scsi/ultrastor.c:954:42: warning: Using plain integer as NULL pointer
drivers/scsi/ultrastor.c:1104:18: warning: Using plain integer as NULL pointer

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 files changed, 15 insertions, 15 deletions

diff --git a/drivers/scsi/aha152x.c b/drivers/scsi/aha152x.c
index a09b2d3fdf5a..f5215fd4b73d 100644
--- a/drivers/scsi/aha152x.c
+++ b/drivers/scsi/aha152x.c
@@ -994,13 +994,13 @@ static int aha152x_internal_queue(Scsi_Cmnd *SCpnt, struct completion *complete,
         SCpnt->SCp.sent_command = 0;
 
         if(SCpnt->SCp.phase & (resetting|check_condition)) {
-                if(SCpnt->host_scribble==0 || SCSEM(SCpnt) || SCNEXT(SCpnt)) {
+                if (!SCpnt->host_scribble || SCSEM(SCpnt) || SCNEXT(SCpnt)) {
                         printk(ERR_LEAD "cannot reuse command\n", CMDINFO(SCpnt));
                         return FAILED;
                 }
         } else {
                 SCpnt->host_scribble = kmalloc(sizeof(struct aha152x_scdata), GFP_ATOMIC);
-                if(SCpnt->host_scribble==0) {
+                if(!SCpnt->host_scribble) {
                         printk(ERR_LEAD "allocation failed\n", CMDINFO(SCpnt));
                         return FAILED;
                 }
@@ -1162,7 +1162,7 @@ static int aha152x_device_reset(Scsi_Cmnd * SCpnt)
         }
 
         DO_LOCK(flags);
-        issued       = remove_SC(&ISSUE_SC, SCpnt)==0;
+        issued       = remove_SC(&ISSUE_SC, SCpnt) == NULL;
         disconnected = issued && remove_SC(&DISCONNECTED_SC, SCpnt);
         DO_UNLOCK(flags);
 
diff --git a/drivers/scsi/aic7xxx/aic7770_osm.c b/drivers/scsi/aic7xxx/aic7770_osm.c
index 1ac119733bac..f220e5e436ab 100644
--- a/drivers/scsi/aic7xxx/aic7770_osm.c
+++ b/drivers/scsi/aic7xxx/aic7770_osm.c
@@ -50,7 +50,7 @@ aic7770_map_registers(struct ahc_softc *ahc, u_int port)
         /*
          * Lock out other contenders for our i/o space.
          */
-        if (request_region(port, AHC_EISA_IOSIZE, "aic7xxx") == 0)
+        if (!request_region(port, AHC_EISA_IOSIZE, "aic7xxx"))
                 return (ENOMEM);
         ahc->tag = BUS_SPACE_PIO;
         ahc->bsh.ioport = port;
diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c b/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c
index 0d7628f1f1ef..00f5b9868574 100644
--- a/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c
@@ -352,7 +352,7 @@ ahc_linux_pci_reserve_io_region(struct ahc_softc *ahc, resource_size_t *base)
         *base = pci_resource_start(ahc->dev_softc, 0);
         if (*base == 0)
                 return (ENOMEM);
-        if (request_region(*base, 256, "aic7xxx") == 0)
+        if (!request_region(*base, 256, "aic7xxx"))
                 return (ENOMEM);
         return (0);
 }
@@ -369,7 +369,7 @@ ahc_linux_pci_reserve_mem_region(struct ahc_softc *ahc,
         start = pci_resource_start(ahc->dev_softc, 1);
         if (start != 0) {
                 *bus_addr = start;
-                if (request_mem_region(start, 0x1000, "aic7xxx") == 0)
+                if (!request_mem_region(start, 0x1000, "aic7xxx"))
                         error = ENOMEM;
                 if (error == 0) {
                         *maddr = ioremap_nocache(start, 256);
diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c
index c9dd8392aab2..ac92ac143b46 100644
--- a/drivers/scsi/dpt_i2o.c
+++ b/drivers/scsi/dpt_i2o.c
@@ -153,7 +153,7 @@ static DEFINE_SPINLOCK(adpt_post_wait_lock);
 
 static u8 adpt_read_blink_led(adpt_hba* host)
 {
-        if(host->FwDebugBLEDflag_P != 0) {
+        if (host->FwDebugBLEDflag_P) {
                 if( readb(host->FwDebugBLEDflag_P) == 0xbc ){
                         return readb(host->FwDebugBLEDvalue_P);
                 }
diff --git a/drivers/scsi/fdomain.c b/drivers/scsi/fdomain.c
index 2cd6b4959eb2..c33bcb284df7 100644
--- a/drivers/scsi/fdomain.c
+++ b/drivers/scsi/fdomain.c
@@ -1443,7 +1443,7 @@ static int fdomain_16x0_queue(struct scsi_cmnd *SCpnt,
            current_SC->SCp.this_residual    = current_SC->SCp.buffer->length;
            current_SC->SCp.buffers_residual = scsi_sg_count(current_SC) - 1;
    } else {
-           current_SC->SCp.ptr              = 0;
+           current_SC->SCp.ptr              = NULL;
            current_SC->SCp.this_residual    = 0;
            current_SC->SCp.buffer           = NULL;
            current_SC->SCp.buffers_residual = 0;
diff --git a/drivers/scsi/ncr53c8xx.c b/drivers/scsi/ncr53c8xx.c
index d89289400425..ceab4f73caf1 100644
--- a/drivers/scsi/ncr53c8xx.c
+++ b/drivers/scsi/ncr53c8xx.c
@@ -8186,7 +8186,7 @@ static void insert_into_waiting_list(struct ncb *np, struct scsi_cmnd *cmd)
         cmd->next_wcmd = NULL;
         if (!(wcmd = np->waiting_list)) np->waiting_list = cmd;
         else {
-                while ((wcmd->next_wcmd) != 0)
+                while (wcmd->next_wcmd)
                         wcmd = (struct scsi_cmnd *) wcmd->next_wcmd;
                 wcmd->next_wcmd = (char *) cmd;
         }
@@ -8222,7 +8222,7 @@ static void process_waiting_list(struct ncb *np, int sts)
 #ifdef DEBUG_WAITING_LIST
         if (waiting_list) printk("%s: waiting_list=%lx processing sts=%d\n", ncr_name(np), (u_long) waiting_list, sts);
 #endif
-        while ((wcmd = waiting_list) != 0) {
+        while (wcmd = waiting_list) {
                 waiting_list = (struct scsi_cmnd *) wcmd->next_wcmd;
                 wcmd->next_wcmd = NULL;
                 if (sts == DID_OK) {
diff --git a/drivers/scsi/sym53c8xx_2/sym_hipd.c b/drivers/scsi/sym53c8xx_2/sym_hipd.c
index 35142b5341b5..22a6aae78699 100644
--- a/drivers/scsi/sym53c8xx_2/sym_hipd.c
+++ b/drivers/scsi/sym53c8xx_2/sym_hipd.c
@@ -1647,7 +1647,7 @@ static void sym_flush_comp_queue(struct sym_hcb *np, int cam_status)
         SYM_QUEHEAD *qp;
         struct sym_ccb *cp;
 
-        while ((qp = sym_remque_head(&np->comp_ccbq)) != 0) {
+        while ((qp = sym_remque_head(&np->comp_ccbq)) != NULL) {
                 struct scsi_cmnd *cmd;
                 cp = sym_que_entry(qp, struct sym_ccb, link_ccbq);
                 sym_insque_tail(&cp->link_ccbq, &np->busy_ccbq);
@@ -3168,7 +3168,7 @@ int sym_clear_tasks(struct sym_hcb *np, int cam_status, int target, int lun, int
          *  the COMP queue and put back other ones into 
          *  the BUSY queue.
          */
-        while ((qp = sym_remque_head(&qtmp)) != 0) {
+        while ((qp = sym_remque_head(&qtmp)) != NULL) {
                 struct scsi_cmnd *cmd;
                 cp = sym_que_entry(qp, struct sym_ccb, link_ccbq);
                 cmd = cp->cmd;
@@ -5729,7 +5729,7 @@ void sym_hcb_free(struct sym_hcb *np)
                 sym_mfree_dma(np->dqueue, sizeof(u32)*(MAX_QUEUE*2), "DQUEUE");
 
         if (np->actccbs) {
-                while ((qp = sym_remque_head(&np->free_ccbq)) != 0) {
+                while ((qp = sym_remque_head(&np->free_ccbq)) != NULL) {
                         cp = sym_que_entry(qp, struct sym_ccb, link_ccbq);
                         sym_mfree_dma(cp, sizeof(*cp), "CCB");
                 }
diff --git a/drivers/scsi/ultrastor.c b/drivers/scsi/ultrastor.c
index f385dce8dfbe..27aa40f3980e 100644
--- a/drivers/scsi/ultrastor.c
+++ b/drivers/scsi/ultrastor.c
@@ -951,7 +951,7 @@ static int ultrastor_abort(struct scsi_cmnd *SCpnt)
         printk("abort: command mismatch, %p != %p\n",
                config.mscp[mscp_index].SCint, SCpnt);
 #endif
-    if (config.mscp[mscp_index].SCint == 0)
+    if (config.mscp[mscp_index].SCint == NULL)
         return FAILED;
 
     if (config.mscp[mscp_index].SCint != SCpnt) panic("Bad abort");
@@ -1101,7 +1101,7 @@ static void ultrastor_interrupt(void *dev_id)
     SCtmp = mscp->SCint;
     mscp->SCint = NULL;
 
-    if (SCtmp == 0)
+    if (!SCtmp)
       {
 #if ULTRASTOR_DEBUG & (UD_ABORT|UD_INTERRUPT)
         printk("MSCP %d (%x): no command\n", mscp_index, (unsigned int) mscp);