From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Boyd Subject: [PATCH v3 1/2] HID: i2c-hid: Use devm to allocate i2c_hid struct Date: Thu, 21 Jun 2018 19:27:16 -0700 Message-ID: <20180622022717.134300-2-swboyd@chromium.org> References: <20180622022717.134300-1-swboyd@chromium.org> Return-path: In-Reply-To: <20180622022717.134300-1-swboyd@chromium.org> Sender: linux-kernel-owner@vger.kernel.org To: Jiri Kosina Cc: linux-kernel@vger.kernel.org, linux-input@vger.kernel.org, Benjamin Tissoires , Hans de Goede , Andy Shevchenko , Dmitry Torokhov , Doug Anderson List-Id: linux-input@vger.kernel.org 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 Cc: Hans de Goede Cc: Andy Shevchenko Cc: Dmitry Torokhov Cc: Doug Anderson Signed-off-by: Stephen Boyd --- 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 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 @@ static int i2c_hid_probe(struct i2c_client *client, 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; } -- Sent by a computer through tubes