hwmon: (sch56xx-common) Fix build warnings
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>
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@ -503,10 +503,10 @@ EXPORT_SYMBOL(sch56xx_watchdog_unregister);
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* platform dev find, add and remove functions
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*/
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static int __init sch56xx_find(int sioaddr, unsigned short *address,
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const char **name)
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static int __init sch56xx_find(int sioaddr, const char **name)
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{
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u8 devid;
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unsigned short address;
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int err;
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err = superio_enter(sioaddr);
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@ -540,20 +540,21 @@ static int __init sch56xx_find(int sioaddr, unsigned short *address,
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* Warning the order of the low / high byte is the other way around
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* as on most other superio devices!!
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*/
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*address = superio_inb(sioaddr, SIO_REG_ADDR) |
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address = superio_inb(sioaddr, SIO_REG_ADDR) |
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superio_inb(sioaddr, SIO_REG_ADDR + 1) << 8;
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if (*address == 0) {
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if (address == 0) {
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pr_warn("Base address not set\n");
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err = -ENODEV;
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goto exit;
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}
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err = address;
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exit:
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superio_exit(sioaddr);
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return err;
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}
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static int __init sch56xx_device_add(unsigned short address, const char *name)
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static int __init sch56xx_device_add(int address, const char *name)
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{
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struct resource res = {
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.start = address,
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@ -593,15 +594,14 @@ exit_device_put:
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static int __init sch56xx_init(void)
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{
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int err;
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unsigned short address;
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const char *name;
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int address;
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const char *name = NULL;
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err = sch56xx_find(0x4e, &address, &name);
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if (err)
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err = sch56xx_find(0x2e, &address, &name);
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if (err)
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return err;
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address = sch56xx_find(0x4e, &name);
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if (address < 0)
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address = sch56xx_find(0x2e, &name);
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if (address < 0)
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return address;
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return sch56xx_device_add(address, name);
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}
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