Input: drivers/joystick - fix various sparse warnings

Fix various issues pointed by sparse:
 - module_param_array_named() takes unsigned int as number
   of parameters argument
 - shadowing of global variables is not healthy. I think there was
   once a bug in db9 caused by it.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

5 files changed, 30 insertions, 27 deletions

diff --git a/drivers/input/joystick/analog.c b/drivers/input/joystick/analog.c
index 1c1afb5d4684..bdd157c1ebf8 100644
--- a/drivers/input/joystick/analog.c
+++ b/drivers/input/joystick/analog.c
@@ -53,7 +53,7 @@ MODULE_LICENSE("GPL");
 #define ANALOG_PORTS            16
 
 static char *js[ANALOG_PORTS];
-static int js_nargs;
+static unsigned int js_nargs;
 static int analog_options[ANALOG_PORTS];
 module_param_array_named(map, js, charp, &js_nargs, 0);
 MODULE_PARM_DESC(map, "Describes analog joysticks type/capabilities");
diff --git a/drivers/input/joystick/db9.c b/drivers/input/joystick/db9.c
index c27593bf9978..86ad1027e12a 100644
--- a/drivers/input/joystick/db9.c
+++ b/drivers/input/joystick/db9.c
@@ -46,17 +46,17 @@ MODULE_LICENSE("GPL");
 
 struct db9_config {
         int args[2];
-        int nargs;
+        unsigned int nargs;
 };
 
 #define DB9_MAX_PORTS           3
-static struct db9_config db9[DB9_MAX_PORTS] __initdata;
+static struct db9_config db9_cfg[DB9_MAX_PORTS] __initdata;
 
-module_param_array_named(dev, db9[0].args, int, &db9[0].nargs, 0);
+module_param_array_named(dev, db9_cfg[0].args, int, &db9_cfg[0].nargs, 0);
 MODULE_PARM_DESC(dev, "Describes first attached device (<parport#>,<type>)");
-module_param_array_named(dev2, db9[1].args, int, &db9[0].nargs, 0);
+module_param_array_named(dev2, db9_cfg[1].args, int, &db9_cfg[0].nargs, 0);
 MODULE_PARM_DESC(dev2, "Describes second attached device (<parport#>,<type>)");
-module_param_array_named(dev3, db9[2].args, int, &db9[2].nargs, 0);
+module_param_array_named(dev3, db9_cfg[2].args, int, &db9_cfg[2].nargs, 0);
 MODULE_PARM_DESC(dev3, "Describes third attached device (<parport#>,<type>)");
 
 #define DB9_ARG_PARPORT         0
@@ -680,17 +680,17 @@ static int __init db9_init(void)
         int err = 0;
 
         for (i = 0; i < DB9_MAX_PORTS; i++) {
-                if (db9[i].nargs == 0 || db9[i].args[DB9_ARG_PARPORT] < 0)
+                if (db9_cfg[i].nargs == 0 || db9_cfg[i].args[DB9_ARG_PARPORT] < 0)
                         continue;
 
-                if (db9[i].nargs < 2) {
+                if (db9_cfg[i].nargs < 2) {
                         printk(KERN_ERR "db9.c: Device type must be specified.\n");
                         err = -EINVAL;
                         break;
                 }
 
-                db9_base[i] = db9_probe(db9[i].args[DB9_ARG_PARPORT],
-                                        db9[i].args[DB9_ARG_MODE]);
+                db9_base[i] = db9_probe(db9_cfg[i].args[DB9_ARG_PARPORT],
+                                        db9_cfg[i].args[DB9_ARG_MODE]);
                 if (IS_ERR(db9_base[i])) {
                         err = PTR_ERR(db9_base[i]);
                         break;
diff --git a/drivers/input/joystick/gamecon.c b/drivers/input/joystick/gamecon.c
index c71b58fe225d..1a452e0e5f25 100644
--- a/drivers/input/joystick/gamecon.c
+++ b/drivers/input/joystick/gamecon.c
@@ -48,16 +48,16 @@ MODULE_LICENSE("GPL");
 
 struct gc_config {
         int args[GC_MAX_DEVICES + 1];
-        int nargs;
+        unsigned int nargs;
 };
 
-static struct gc_config gc[GC_MAX_PORTS] __initdata;
+static struct gc_config gc_cfg[GC_MAX_PORTS] __initdata;
 
-module_param_array_named(map, gc[0].args, int, &gc[0].nargs, 0);
+module_param_array_named(map, gc_cfg[0].args, int, &gc_cfg[0].nargs, 0);
 MODULE_PARM_DESC(map, "Describes first set of devices (<parport#>,<pad1>,<pad2>,..<pad5>)");
-module_param_array_named(map2, gc[1].args, int, &gc[1].nargs, 0);
+module_param_array_named(map2, gc_cfg[1].args, int, &gc_cfg[1].nargs, 0);
 MODULE_PARM_DESC(map2, "Describes second set of devices");
-module_param_array_named(map3, gc[2].args, int, &gc[2].nargs, 0);
+module_param_array_named(map3, gc_cfg[2].args, int, &gc_cfg[2].nargs, 0);
 MODULE_PARM_DESC(map3, "Describes third set of devices");
 
 /* see also gs_psx_delay parameter in PSX support section */
@@ -810,16 +810,17 @@ static int __init gc_init(void)
         int err = 0;
 
         for (i = 0; i < GC_MAX_PORTS; i++) {
-                if (gc[i].nargs == 0 || gc[i].args[0] < 0)
+                if (gc_cfg[i].nargs == 0 || gc_cfg[i].args[0] < 0)
                         continue;
 
-                if (gc[i].nargs < 2) {
+                if (gc_cfg[i].nargs < 2) {
                         printk(KERN_ERR "gamecon.c: at least one device must be specified\n");
                         err = -EINVAL;
                         break;
                 }
 
-                gc_base[i] = gc_probe(gc[i].args[0], gc[i].args + 1, gc[i].nargs - 1);
+                gc_base[i] = gc_probe(gc_cfg[i].args[0],
+                                      gc_cfg[i].args + 1, gc_cfg[i].nargs - 1);
                 if (IS_ERR(gc_base[i])) {
                         err = PTR_ERR(gc_base[i]);
                         break;
diff --git a/drivers/input/joystick/iforce/iforce.h b/drivers/input/joystick/iforce/iforce.h
index dadcf4fb92ae..40a853ac21c7 100644
--- a/drivers/input/joystick/iforce/iforce.h
+++ b/drivers/input/joystick/iforce/iforce.h
@@ -124,7 +124,7 @@ struct iforce {
         /* Buffer used for asynchronous sending of bytes to the device */
         struct circ_buf xmit;
         unsigned char xmit_data[XMIT_SIZE];
-        long xmit_flags[1];
+        unsigned long xmit_flags[1];
 
                                         /* Force Feedback */
         wait_queue_head_t wait;
diff --git a/drivers/input/joystick/turbografx.c b/drivers/input/joystick/turbografx.c
index 0f2c60823b0b..8381c6f14373 100644
--- a/drivers/input/joystick/turbografx.c
+++ b/drivers/input/joystick/turbografx.c
@@ -48,16 +48,16 @@ MODULE_LICENSE("GPL");
 
 struct tgfx_config {
         int args[TGFX_MAX_DEVICES + 1];
-        int nargs;
+        unsigned int nargs;
 };
 
-static struct tgfx_config tgfx[TGFX_MAX_PORTS] __initdata;
+static struct tgfx_config tgfx_cfg[TGFX_MAX_PORTS] __initdata;
 
-module_param_array_named(map, tgfx[0].args, int, &tgfx[0].nargs, 0);
+module_param_array_named(map, tgfx_cfg[0].args, int, &tgfx_cfg[0].nargs, 0);
 MODULE_PARM_DESC(map, "Describes first set of devices (<parport#>,<js1>,<js2>,..<js7>");
-module_param_array_named(map2, tgfx[1].args, int, &tgfx[1].nargs, 0);
+module_param_array_named(map2, tgfx_cfg[1].args, int, &tgfx_cfg[1].nargs, 0);
 MODULE_PARM_DESC(map2, "Describes second set of devices");
-module_param_array_named(map3, tgfx[2].args, int, &tgfx[2].nargs, 0);
+module_param_array_named(map3, tgfx_cfg[2].args, int, &tgfx_cfg[2].nargs, 0);
 MODULE_PARM_DESC(map3, "Describes third set of devices");
 
 #define TGFX_REFRESH_TIME       HZ/100  /* 10 ms */
@@ -283,16 +283,18 @@ static int __init tgfx_init(void)
         int err = 0;
 
         for (i = 0; i < TGFX_MAX_PORTS; i++) {
-                if (tgfx[i].nargs == 0 || tgfx[i].args[0] < 0)
+                if (tgfx_cfg[i].nargs == 0 || tgfx_cfg[i].args[0] < 0)
                         continue;
 
-                if (tgfx[i].nargs < 2) {
+                if (tgfx_cfg[i].nargs < 2) {
                         printk(KERN_ERR "turbografx.c: at least one joystick must be specified\n");
                         err = -EINVAL;
                         break;
                 }
 
-                tgfx_base[i] = tgfx_probe(tgfx[i].args[0], tgfx[i].args + 1, tgfx[i].nargs - 1);
+                tgfx_base[i] = tgfx_probe(tgfx_cfg[i].args[0],
+                                          tgfx_cfg[i].args + 1,
+                                          tgfx_cfg[i].nargs - 1);
                 if (IS_ERR(tgfx_base[i])) {
                         err = PTR_ERR(tgfx_base[i]);
                         break;