diff options
| author | Guenter Roeck <linux@roeck-us.net> | 2012-08-04 20:54:16 +0400 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2012-09-24 08:08:29 +0400 |
| commit | 313829ee3cccbc658409357f32a1508620b60142 (patch) | |
| tree | 4f2c4eccda78eec49ff8bd73fad7ee868d18df79 /drivers/hwmon/sch56xx-common.c | |
| parent | 0038389add7388954d74985ce7e631076216cf02 (diff) | |
| download | linux-313829ee3cccbc658409357f32a1508620b60142.tar.xz | |
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>
Diffstat (limited to 'drivers/hwmon/sch56xx-common.c')
| -rw-r--r-- | drivers/hwmon/sch56xx-common.c | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/drivers/hwmon/sch56xx-common.c b/drivers/hwmon/sch56xx-common.c index 4380f5d07be2..d00b30adc34b 100644 --- a/drivers/hwmon/sch56xx-common.c +++ b/drivers/hwmon/sch56xx-common.c @@ -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 @@ exit_device_put: static int __init sch56xx_init(void) { - int err; - unsigned short address; - const char *name; - - err = sch56xx_find(0x4e, &address, &name); - if (err) - err = sch56xx_find(0x2e, &address, &name); - if (err) - return err; + int address; + const char *name = NULL; + + address = sch56xx_find(0x4e, &name); + if (address < 0) + address = sch56xx_find(0x2e, &name); + if (address < 0) + return address; return sch56xx_device_add(address, name); } |