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hwmon: (sch56xx-common) Fix build warnings

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Fix:
warning: 'address' may be used uninitialized in this function
warning: 'name' may be used uninitialized in this function

While those are false warnings, the patch reduces module size on x86_64 by
approximately 110 bytes, so it is still worth the effort.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Guenter Roeck 2012-08-04 09:54:16 -07:00
parent 0038389add
commit 313829ee3c
1 changed files with 13 additions and 13 deletions
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26
drivers/hwmon/sch56xx-common.c
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@ -503,10 +503,10 @@ EXPORT_SYMBOL(sch56xx_watchdog_unregister);
* platform dev find, add and remove functions
*/
static int __init sch56xx_find(int sioaddr, unsigned short *address,
const char **name)
static int __init sch56xx_find(int sioaddr, const char **name)
{
u8 devid;
unsigned short address;
int err;
err = superio_enter(sioaddr);
@ -540,20 +540,21 @@ static int __init sch56xx_find(int sioaddr, unsigned short *address,
* Warning the order of the low / high byte is the other way around
* as on most other superio devices!!
*/
*address = superio_inb(sioaddr, SIO_REG_ADDR) |
address = superio_inb(sioaddr, SIO_REG_ADDR) |
superio_inb(sioaddr, SIO_REG_ADDR + 1) << 8;
if (*address == 0) {
if (address == 0) {
pr_warn("Base address not set\n");
err = -ENODEV;
goto exit;
}
err = address;
exit:
superio_exit(sioaddr);
return err;
}
static int __init sch56xx_device_add(unsigned short address, const char *name)
static int __init sch56xx_device_add(int address, const char *name)
{
struct resource res = {
.start = address,
@ -593,15 +594,14 @@ static int __init sch56xx_device_add(unsigned short address, const char *name)
static int __init sch56xx_init(void)
{
int err;
unsigned short address;
const char *name;
int address;
const char *name = NULL;
err = sch56xx_find(0x4e, &address, &name);
if (err)
err = sch56xx_find(0x2e, &address, &name);
if (err)
return err;
address = sch56xx_find(0x4e, &name);
if (address < 0)
address = sch56xx_find(0x2e, &name);
if (address < 0)
return address;
return sch56xx_device_add(address, name);
}