From: Eddie James eajames@linux.ibm.com
[ Upstream commit d9406677428e9234ea62bb2d2f5e996d1b777760 ]
Like other eeprom drivers, check if the device is really there and functional before probing.
Signed-off-by: Eddie James eajames@linux.ibm.com Link: https://lore.kernel.org/r/20250218220959.721698-1-eajames@linux.ibm.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/misc/eeprom/ee1004.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/misc/eeprom/ee1004.c b/drivers/misc/eeprom/ee1004.c index 89224d4af4a20..e13f9fdd9d7b1 100644 --- a/drivers/misc/eeprom/ee1004.c +++ b/drivers/misc/eeprom/ee1004.c @@ -304,6 +304,10 @@ static int ee1004_probe(struct i2c_client *client) I2C_FUNC_SMBUS_BYTE | I2C_FUNC_SMBUS_READ_BYTE_DATA)) return -EPFNOSUPPORT;
+ err = i2c_smbus_read_byte(client); + if (err < 0) + return -ENODEV; + mutex_lock(&ee1004_bus_lock);
err = ee1004_init_bus_data(client);