From d6f83894110de247a81392ab7ef89e5498df7e80 Mon Sep 17 00:00:00 2001
From: Stephen Boyd <swboyd@chromium.org>
Date: Thu, 21 Jun 2018 19:27:16 -0700
Subject: [PATCH] HID: i2c-hid: Use devm to allocate i2c_hid struct
Use devm here to save some lines and prepare for bulk regulator usage in
this driver. Otherwise, when we devm bulk get regulators we'll free the
containing i2c_hid structure and try to put regulator pointers from
freed memory.
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Dmitry Torokhov <dtor@chromium.org>
Cc: Doug Anderson <dianders@chromium.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
drivers/hid/i2c-hid/i2c-hid.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c
index c1652bb7bd156..c7d6738dc524d 100644
--- a/drivers/hid/i2c-hid/i2c-hid.c
+++ b/drivers/hid/i2c-hid/i2c-hid.c
@@ -1002,18 +1002,18 @@ static int i2c_hid_probe(struct i2c_client *client,
return client->irq;
}
- ihid = kzalloc(sizeof(struct i2c_hid), GFP_KERNEL);
+ ihid = devm_kzalloc(&client->dev, sizeof(*ihid), GFP_KERNEL);
if (!ihid)
return -ENOMEM;
if (client->dev.of_node) {
ret = i2c_hid_of_probe(client, &ihid->pdata);
if (ret)
- goto err;
+ return ret;
} else if (!platform_data) {
ret = i2c_hid_acpi_pdata(client, &ihid->pdata);
if (ret)
- goto err;
+ return ret;
} else {
ihid->pdata = *platform_data;
}
@@ -1126,7 +1126,6 @@ err_regulator:
err:
i2c_hid_free_buffers(ihid);
- kfree(ihid);
return ret;
}
@@ -1150,8 +1149,6 @@ static int i2c_hid_remove(struct i2c_client *client)
regulator_disable(ihid->pdata.supply);
- kfree(ihid);
-
return 0;
}
--
2.30.2