3.8.13.14 -stable review patch. If anyone has any objections, please let me know.
------------------ From: Jerome Glisse <[email protected]> commit fae009d15a44e5f1d938340facf4b8bc7dc69a09 upstream. Useless to count the register index in number of bytes we are writing. Fixes a regression with hw i2c enabled. Signed-off-by: Jerome Glisse <[email protected]> Signed-off-by: Alex Deucher <[email protected]> [ kamal: backport to 3.8 (context) ] Signed-off-by: Kamal Mostafa <[email protected]> --- drivers/gpu/drm/radeon/atombios_i2c.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/atombios_i2c.c b/drivers/gpu/drm/radeon/atombios_i2c.c index 2ca389d..4bb4b7a 100644 --- a/drivers/gpu/drm/radeon/atombios_i2c.c +++ b/drivers/gpu/drm/radeon/atombios_i2c.c @@ -55,7 +55,10 @@ static int radeon_process_i2c_ch(struct radeon_i2c_chan *chan, DRM_ERROR("hw i2c: tried to write too many bytes (%d vs 2)\n", num); return -EINVAL; } - memcpy(&out, buf, num); + if (num > 1) { + num--; + memcpy(&out, &buf[1], num); + } args.lpI2CDataOut = cpu_to_le16(out); } else { if (num > ATOM_MAX_HW_I2C_READ) { -- 1.8.3.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
