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path: root/drivers/gpu/drm/i915/intel_i2c.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_i2c.c')
-rw-r--r--drivers/gpu/drm/i915/intel_i2c.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/intel_i2c.c b/drivers/gpu/drm/i915/intel_i2c.c
index 2be4f728ed0c..3dba086e7eea 100644
--- a/drivers/gpu/drm/i915/intel_i2c.c
+++ b/drivers/gpu/drm/i915/intel_i2c.c
@@ -160,7 +160,7 @@ intel_gpio_create(struct drm_i915_private *dev_priv, u32 pin)
160 }; 160 };
161 struct intel_gpio *gpio; 161 struct intel_gpio *gpio;
162 162
163 if (pin < 1 || pin > 7) 163 if (pin >= ARRAY_SIZE(map_pin_to_reg) || !map_pin_to_reg[pin])
164 return NULL; 164 return NULL;
165 165
166 gpio = kzalloc(sizeof(struct intel_gpio), GFP_KERNEL); 166 gpio = kzalloc(sizeof(struct intel_gpio), GFP_KERNEL);
@@ -172,7 +172,8 @@ intel_gpio_create(struct drm_i915_private *dev_priv, u32 pin)
172 gpio->reg += PCH_GPIOA - GPIOA; 172 gpio->reg += PCH_GPIOA - GPIOA;
173 gpio->dev_priv = dev_priv; 173 gpio->dev_priv = dev_priv;
174 174
175 snprintf(gpio->adapter.name, I2C_NAME_SIZE, "GPIO%c", "?BACDEF?"[pin]); 175 snprintf(gpio->adapter.name, sizeof(gpio->adapter.name),
176 "i915 GPIO%c", "?BACDE?F"[pin]);
176 gpio->adapter.owner = THIS_MODULE; 177 gpio->adapter.owner = THIS_MODULE;
177 gpio->adapter.algo_data = &gpio->algo; 178 gpio->adapter.algo_data = &gpio->algo;
178 gpio->adapter.dev.parent = &dev_priv->dev->pdev->dev; 179 gpio->adapter.dev.parent = &dev_priv->dev->pdev->dev;
@@ -349,7 +350,7 @@ int intel_setup_gmbus(struct drm_device *dev)
349 "panel", 350 "panel",
350 "dpc", 351 "dpc",
351 "dpb", 352 "dpb",
352 "reserved" 353 "reserved",
353 "dpd", 354 "dpd",
354 }; 355 };
355 struct drm_i915_private *dev_priv = dev->dev_private; 356 struct drm_i915_private *dev_priv = dev->dev_private;
@@ -366,8 +367,8 @@ int intel_setup_gmbus(struct drm_device *dev)
366 bus->adapter.owner = THIS_MODULE; 367 bus->adapter.owner = THIS_MODULE;
367 bus->adapter.class = I2C_CLASS_DDC; 368 bus->adapter.class = I2C_CLASS_DDC;
368 snprintf(bus->adapter.name, 369 snprintf(bus->adapter.name,
369 I2C_NAME_SIZE, 370 sizeof(bus->adapter.name),
370 "gmbus %s", 371 "i915 gmbus %s",
371 names[i]); 372 names[i]);
372 373
373 bus->adapter.dev.parent = &dev->pdev->dev; 374 bus->adapter.dev.parent = &dev->pdev->dev;