Sanjay Chitroda 5bdff291d2
iio: accel: mma8452: handle I2C read error(s) in mma8452_read() ...
Currently, If i2c_smbus_read_i2c_block_data() fails but
mma8452_set_runtime_pm_state() succeeds, mma8452_read() returns 0.
As a result, the caller mma8452_read_raw() assumes the read was
successful and proceeds to use a buffer containing uninitialized
stack memory.
Add proper checking of the I2C read return value and propagate errors
to the caller.
Fixes: 96c0cb2bbfsanjayembeddedse@gmail.com >
Signed-off-by: Jonathan Cameron <jic23@kernel.org >
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