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x-microsoft-antispam-message-info: YccJrTmxHe24tI+7hz7piUHEtojIk+FbyuUc/NX0pS3cHHgfEzA/Gev+gMmbhnoRemNjizEf8MJwDUYdXDJ5q0z9DYtJ9XE+a6wUUIolGSTcFkoJ2IB7wiG3A+/YxcxYeEmhCKy07AchqT6WUspesBezHhCe5sXcJh1VFOvBc3UeQPqFphq1j4YMgtI/mgnekSQ+daCyQezJ93eZNfqFTpDxkxH/u9jSetpgr/H37Uy9rE+AFvHGFAR0B/zmvjFqWuXb3lvNIMd2rEY6YugdKEqzuGJt3dtaEyshoKcxidxU+bPCYLt32JXgpiIv0vcBMFjha8ZNhpn+Ne7uSRpLTQ== spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-Network-Message-Id: eb79b113-b422-49b0-0953-08d58db3b6d5 X-MS-Exchange-CrossTenant-originalarrivaltime: 19 Mar 2018 16:06:38.5834 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR2101MB0965 Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: From: Tin Huynh [ Upstream commit aace34c0bb8ea3c8bdcec865b6a4be4db0a68e33 ] The driver checks an incorrect flag of functionality of adapter. When a driver requires i2c_smbus_read_byte_data and i2c_smbus_write_byte_data, it should check I2C_FUNC_SMBUS_BYTE_DATA instead I2C_FUNC_I2C. This patch fixes the problem. Signed-off-by: Tin Huynh Signed-off-by: Jacek Anaszewski Signed-off-by: Sasha Levin --- drivers/leds/leds-pca955x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/leds/leds-pca955x.c b/drivers/leds/leds-pca955x.c index b775e1efecd3..b9f71a87b7e1 100644 --- a/drivers/leds/leds-pca955x.c +++ b/drivers/leds/leds-pca955x.c @@ -281,7 +281,7 @@ static int pca955x_probe(struct i2c_client *client, "slave address 0x%02x\n", id->name, chip->bits, client->addr); =20 - if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) return -EIO; =20 if (pdata) { --=20 2.14.1