3.18-stable review patch. If anyone has any objections, please let me know.
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From: Tin Huynh tnhuynh@apm.com
[ 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 tnhuynh@apm.com Signed-off-by: Jacek Anaszewski jacek.anaszewski@gmail.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/leds/leds-pca955x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/leds/leds-pca955x.c +++ b/drivers/leds/leds-pca955x.c @@ -281,7 +281,7 @@ static int pca955x_probe(struct i2c_clie "slave address 0x%02x\n", id->name, chip->bits, client->addr);
- if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) return -EIO;
if (pdata) {