gpio: pca953x: Remove explicit comparison with 0

There is no need to explicitly compare return code with 0.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>

diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index aaba0b3..454bbe2 100644 (file)
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -850,12 +850,12 @@ static int device_pca95xx_init(struct pca953x_chip *chip, u32 invert)
 
        ret = regcache_sync_region(chip->regmap, chip->regs->output,
                                   chip->regs->output + NBANK(chip));
-       if (ret != 0)
+       if (ret)
                goto out;
 
        ret = regcache_sync_region(chip->regmap, chip->regs->direction,
                                   chip->regs->direction + NBANK(chip));
-       if (ret != 0)
+       if (ret)
                goto out;
 
        /* set platform specific polarity inversion */
@@ -1061,14 +1061,14 @@ static int pca953x_regcache_sync(struct device *dev)
         */
        ret = regcache_sync_region(chip->regmap, chip->regs->direction,
                                   chip->regs->direction + NBANK(chip));
-       if (ret != 0) {
+       if (ret) {
                dev_err(dev, "Failed to sync GPIO dir registers: %d\n", ret);
                return ret;
        }
 
        ret = regcache_sync_region(chip->regmap, chip->regs->output,
                                   chip->regs->output + NBANK(chip));
-       if (ret != 0) {
+       if (ret) {
                dev_err(dev, "Failed to sync GPIO out registers: %d\n", ret);
                return ret;
        }
@@ -1077,7 +1077,7 @@ static int pca953x_regcache_sync(struct device *dev)
        if (chip->driver_data & PCA_PCAL) {
                ret = regcache_sync_region(chip->regmap, PCAL953X_IN_LATCH,
                                           PCAL953X_IN_LATCH + NBANK(chip));
-               if (ret != 0) {
+               if (ret) {
                        dev_err(dev, "Failed to sync INT latch registers: %d\n",
                                ret);
                        return ret;
@@ -1085,7 +1085,7 @@ static int pca953x_regcache_sync(struct device *dev)
 
                ret = regcache_sync_region(chip->regmap, PCAL953X_INT_MASK,
                                           PCAL953X_INT_MASK + NBANK(chip));
-               if (ret != 0) {
+               if (ret) {
                        dev_err(dev, "Failed to sync INT mask registers: %d\n",
                                ret);
                        return ret;
@@ -1117,7 +1117,7 @@ static int pca953x_resume(struct device *dev)
 
        if (!atomic_read(&chip->wakeup_path)) {
                ret = regulator_enable(chip->regulator);
-               if (ret != 0) {
+               if (ret) {
                        dev_err(dev, "Failed to enable regulator: %d\n", ret);
                        return 0;
                }
@@ -1130,7 +1130,7 @@ static int pca953x_resume(struct device *dev)
                return ret;
 
        ret = regcache_sync(chip->regmap);
-       if (ret != 0) {
+       if (ret) {
                dev_err(dev, "Failed to restore register map: %d\n", ret);
                return ret;
        }