ide: pass number of ports to ide_host_{alloc,add}() (v2)

Pass number of ports to ide_host_{alloc,add}() and then update
all users accordingly.

v2:
- drop no longer needed NULL initializers in buddha.c, cmd640.c and gayle.c
  (noticed by Sergei)

There should be no functional changes caused by this patch.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 5 insertions, 4 deletions

diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index f17ba1932ad6..6c7451a6e609 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -1261,7 +1261,8 @@ out_nomem:
         return -ENOMEM;
 }
 
-struct ide_host *ide_host_alloc(const struct ide_port_info *d, hw_regs_t **hws)
+struct ide_host *ide_host_alloc(const struct ide_port_info *d, hw_regs_t **hws,
+                                unsigned int n_ports)
 {
         struct ide_host *host;
         struct device *dev = hws[0] ? hws[0]->dev : NULL;
@@ -1272,7 +1273,7 @@ struct ide_host *ide_host_alloc(const struct ide_port_info *d, hw_regs_t **hws)
         if (host == NULL)
                 return NULL;
 
-        for (i = 0; i < MAX_HOST_PORTS; i++) {
+        for (i = 0; i < n_ports; i++) {
                 ide_hwif_t *hwif;
                 int idx;
 
@@ -1443,12 +1444,12 @@ int ide_host_register(struct ide_host *host, const struct ide_port_info *d,
 EXPORT_SYMBOL_GPL(ide_host_register);
 
 int ide_host_add(const struct ide_port_info *d, hw_regs_t **hws,
-                 struct ide_host **hostp)
+                 unsigned int n_ports, struct ide_host **hostp)
 {
         struct ide_host *host;
         int rc;
 
-        host = ide_host_alloc(d, hws);
+        host = ide_host_alloc(d, hws, n_ports);
         if (host == NULL)
                 return -ENOMEM;