diff options
| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-03-25 03:53:42 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-03-25 03:53:42 -0300 |
| commit | 03dd4cb26d967f9588437b0fc9cc0e8353322bb7 (patch) | |
| tree | fa581f6dc1c0596391690d1f67eceef3af8246dc /drivers/i2c/busses/i2c-uniphier.c | |
| parent | d4e493caf788ef44982e131ff9c786546904d934 (diff) | |
Linux-libre 4.5-gnu
Diffstat (limited to 'drivers/i2c/busses/i2c-uniphier.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-uniphier.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/i2c/busses/i2c-uniphier.c b/drivers/i2c/busses/i2c-uniphier.c index e3c3861c3..89eaa8a7e 100644 --- a/drivers/i2c/busses/i2c-uniphier.c +++ b/drivers/i2c/busses/i2c-uniphier.c @@ -327,6 +327,11 @@ static int uniphier_i2c_clk_init(struct device *dev, if (of_property_read_u32(np, "clock-frequency", &bus_speed)) bus_speed = UNIPHIER_I2C_DEFAULT_SPEED; + if (!bus_speed) { + dev_err(dev, "clock-frequency should not be zero\n"); + return -EINVAL; + } + if (bus_speed > UNIPHIER_I2C_MAX_SPEED) bus_speed = UNIPHIER_I2C_MAX_SPEED; @@ -342,6 +347,10 @@ static int uniphier_i2c_clk_init(struct device *dev, return ret; clk_rate = clk_get_rate(priv->clk); + if (!clk_rate) { + dev_err(dev, "input clock rate should not be zero\n"); + return -EINVAL; + } uniphier_i2c_reset(priv, true); @@ -388,7 +397,7 @@ static int uniphier_i2c_probe(struct platform_device *pdev) ret = uniphier_i2c_clk_init(dev, priv); if (ret) - return ret; + goto err; ret = devm_request_irq(dev, irq, uniphier_i2c_interrupt, 0, pdev->name, priv); |