---

yaml --- r: 227713 b: refs/heads/master c: 45efe84 h: refs/heads/master i: 227711: 589d8b2 v: v3
git-mirror · Dec 24, 2010 · 7306191 · 7306191
1 parent 96ef8f2
commit 7306191
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Showing 2 changed files with 11 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 9ed030d728f3bd03b6e869357da02725afda19a7
+refs/heads/master: 45efe847971e6274a04eea75a0745d8015b54d37
diff --git a/trunk/drivers/misc/eeprom/at24.c b/trunk/drivers/misc/eeprom/at24.c
@@ -517,6 +517,11 @@ static int at24_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	if (!is_power_of_2(chip.byte_len))
 		dev_warn(&client->dev,
 			"byte_len looks suspicious (no power of 2)!\n");
+	if (!chip.page_size) {
+		dev_err(&client->dev, "page_size must not be 0!\n");
+		err = -EINVAL;
+		goto err_out;
+	}
 	if (!is_power_of_2(chip.page_size))
 		dev_warn(&client->dev,
 			"page_size looks suspicious (no power of 2)!\n");
@@ -681,6 +686,11 @@ static struct i2c_driver at24_driver = {
 
 static int __init at24_init(void)
 {
+	if (!io_limit) {
+		pr_err("at24: io_limit must not be 0!\n");
+		return -EINVAL;
+	}
+
 	io_limit = rounddown_pow_of_two(io_limit);
 	return i2c_add_driver(&at24_driver);
 }