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Subject[PATCH 07/21] gpio: use devm_irq_of_parse_and_map() where appropriate
Date
From: Nikita Yushchenko <nyushchenko@dev.rtsoft.ru>

This avoids leak of IRQ mapping on error paths, and makes it possible
to use devm_request_irq() without facing unmap-while-handler-installed
issues.

Signed-off-by: Nikita Yushchenko <nyushchenko@dev.rtsoft.ru>
---
drivers/gpio/gpio-adnp.c | 4 ++--
drivers/gpio/gpio-mcp23s08.c | 5 ++++-
2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/gpio/gpio-adnp.c b/drivers/gpio/gpio-adnp.c
index b2239d6..c10e224 100644
--- a/drivers/gpio/gpio-adnp.c
+++ b/drivers/gpio/gpio-adnp.c
@@ -546,8 +546,8 @@ static int adnp_i2c_probe(struct i2c_client *client,
if (err < 0)
return err;

- client->irq = irq_of_parse_and_map(np, 0);
- if (!client->irq)
+ client->irq = devm_irq_of_parse_and_map(&client->dev, np, 0);
+ if (client->irq <= 0)
return -EPROBE_DEFER;

adnp = devm_kzalloc(&client->dev, sizeof(*adnp), GFP_KERNEL);
diff --git a/drivers/gpio/gpio-mcp23s08.c b/drivers/gpio/gpio-mcp23s08.c
index 3d53fd6..b6f4217 100644
--- a/drivers/gpio/gpio-mcp23s08.c
+++ b/drivers/gpio/gpio-mcp23s08.c
@@ -779,7 +779,10 @@ static int mcp230xx_probe(struct i2c_client *client,
if (match || !pdata) {
base = -1;
pullups = 0;
- client->irq = irq_of_parse_and_map(client->dev.of_node, 0);
+ client->irq = devm_irq_of_parse_and_map(&client->dev,
+ client->dev.of_node, 0);
+ if (client->irq < 0)
+ return client->irq;
} else {
if (!gpio_is_valid(pdata->base)) {
dev_dbg(&client->dev, "invalid platform data\n");
--
1.7.10.4


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