mfd: Avoid two assignments if failures happen in tps65910_i2c_probe
authorJesper Juhl <jj@chaosbits.net>
Wed, 13 Jul 2011 21:22:26 +0000 (23:22 +0200)
committerSamuel Ortiz <sameo@linux.intel.com>
Sun, 31 Jul 2011 21:28:26 +0000 (23:28 +0200)
In drivers/mfd/tps65910.c:tps65910_i2c_probe() there's potential for a
tiny optimization.

We assign to init_data->irq and init_data->irq_base long before we
need them, and there are two potential exits from the function before
they are needed.

Moving the assignments below these two potential exits means we
completely avoid doing them in these two (failure) cases.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Acked-by: Graeme Gregory <gg@slimlogic.co.uk>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
drivers/mfd/tps65910.c

index 0226cdea2b470c0e4cbd4c88bcfa696aafcba8a7..6f5b8cf2f652b8edf6accf9db107d8f63ea72c23 100644 (file)
@@ -147,9 +147,6 @@ static int tps65910_i2c_probe(struct i2c_client *i2c,
        if (init_data == NULL)
                return -ENOMEM;
 
-       init_data->irq = pmic_plat_data->irq;
-       init_data->irq_base = pmic_plat_data->irq;
-
        tps65910 = kzalloc(sizeof(struct tps65910), GFP_KERNEL);
        if (tps65910 == NULL) {
                kfree(init_data);
@@ -170,6 +167,9 @@ static int tps65910_i2c_probe(struct i2c_client *i2c,
        if (ret < 0)
                goto err;
 
+       init_data->irq = pmic_plat_data->irq;
+       init_data->irq_base = pmic_plat_data->irq;
+
        tps65910_gpio_init(tps65910, pmic_plat_data->gpio_base);
 
        ret = tps65910_irq_init(tps65910, init_data->irq, init_data);