From 42a71ef97b7ac31ae8f929c36048fec5cd201a49 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Thu, 21 Aug 2014 07:06:06 -0500 Subject: [PATCH] mfd: menelaus: Fix error return code Convert a zero return value on error to a negative one, as returned elsewhere in the function. Additionally, converted 1 << 7 to BIT(7) at the suggestion of Lee Jones. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // ( if@p1 (\(ret < 0\|ret != 0\)) { ... return ret; } | ret@p1 = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // Signed-off-by: Julia Lawall Signed-off-by: Lee Jones --- drivers/mfd/menelaus.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/mfd/menelaus.c b/drivers/mfd/menelaus.c index 18ff56f3b52a..9f01aef539dd 100644 --- a/drivers/mfd/menelaus.c +++ b/drivers/mfd/menelaus.c @@ -1183,7 +1183,7 @@ static int menelaus_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct menelaus_chip *menelaus; - int rev = 0, val; + int rev = 0; int err = 0; struct menelaus_platform_data *menelaus_pdata = dev_get_platdata(&client->dev); @@ -1236,10 +1236,10 @@ static int menelaus_probe(struct i2c_client *client, pr_info("Menelaus rev %d.%d\n", rev >> 4, rev & 0x0f); - val = menelaus_read_reg(MENELAUS_VCORE_CTRL1); - if (val < 0) + err = menelaus_read_reg(MENELAUS_VCORE_CTRL1); + if (err < 0) goto fail; - if (val & (1 << 7)) + if (err & BIT(7)) menelaus->vcore_hw_mode = 1; else menelaus->vcore_hw_mode = 0;