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authorStephen Boyd <swboyd@chromium.org>2018-06-22 04:27:16 +0200
committerJiri Kosina <jkosina@suse.cz>2018-06-25 15:12:42 +0200
commitd6f83894110de247a81392ab7ef89e5498df7e80 (patch)
tree6eaa205278dc4b6cc198cd9eae45b23f3579e19c /drivers/hid/i2c-hid
parentMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jik... (diff)
downloadlinux-d6f83894110de247a81392ab7ef89e5498df7e80.tar.xz
linux-d6f83894110de247a81392ab7ef89e5498df7e80.zip
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>
Diffstat (limited to 'drivers/hid/i2c-hid')
-rw-r--r--drivers/hid/i2c-hid/i2c-hid.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c
index c1652bb7bd15..c7d6738dc524 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;
}