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eeprom: ee1004: Check chip before probing

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[ 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>
This commit is contained in:
Eddie James
2025-02-18 16:09:59 -06:00
committed by Greg Kroah-Hartman
parent 011a62d2d7
commit d85004266a
1 changed files with 4 additions and 0 deletions
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4
drivers/misc/eeprom/ee1004.c
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@@ -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);