Fix I2C-drivers which missed setting clientdata to NULL before freeing the structure it points to. Also fix drivers which do this _after_ the structure was freed already.
Signed-off-by: Wolfram Sang <[email protected]> Cc: Mauro Carvalho Chehab <[email protected]> --- Found using coccinelle, then reviewed. Full patchset is available via kernel-janitors, linux-i2c, and LKML. --- drivers/media/video/cs5345.c | 1 + drivers/media/video/cs53l32a.c | 1 + drivers/media/video/ir-kbd-i2c.c | 2 ++ drivers/media/video/tda9840.c | 1 + drivers/media/video/tea6415c.c | 1 + drivers/media/video/tea6420.c | 1 + drivers/media/video/ths7303.c | 1 + 7 files changed, 8 insertions(+), 0 deletions(-) diff --git a/drivers/media/video/cs5345.c b/drivers/media/video/cs5345.c index 57dc170..cd21aa8 100644 --- a/drivers/media/video/cs5345.c +++ b/drivers/media/video/cs5345.c @@ -196,6 +196,7 @@ static int cs5345_remove(struct i2c_client *client) struct v4l2_subdev *sd = i2c_get_clientdata(client); v4l2_device_unregister_subdev(sd); + i2c_set_clientdata(client, NULL); kfree(sd); return 0; } diff --git a/drivers/media/video/cs53l32a.c b/drivers/media/video/cs53l32a.c index 80bca8d..527f731 100644 --- a/drivers/media/video/cs53l32a.c +++ b/drivers/media/video/cs53l32a.c @@ -199,6 +199,7 @@ static int cs53l32a_remove(struct i2c_client *client) struct v4l2_subdev *sd = i2c_get_clientdata(client); v4l2_device_unregister_subdev(sd); + i2c_set_clientdata(client, NULL); kfree(sd); return 0; } diff --git a/drivers/media/video/ir-kbd-i2c.c b/drivers/media/video/ir-kbd-i2c.c index da18d69..f29c5cd 100644 --- a/drivers/media/video/ir-kbd-i2c.c +++ b/drivers/media/video/ir-kbd-i2c.c @@ -461,6 +461,7 @@ static int ir_probe(struct i2c_client *client, const struct i2c_device_id *id) return 0; err_out_free: + i2c_set_clientdata(client, NULL); kfree(ir); return err; } @@ -476,6 +477,7 @@ static int ir_remove(struct i2c_client *client) ir_input_unregister(ir->input); /* free memory */ + i2c_set_clientdata(client, NULL); kfree(ir); return 0; } diff --git a/drivers/media/video/tda9840.c b/drivers/media/video/tda9840.c index d381fce..b608aaf 100644 --- a/drivers/media/video/tda9840.c +++ b/drivers/media/video/tda9840.c @@ -188,6 +188,7 @@ static int tda9840_remove(struct i2c_client *client) struct v4l2_subdev *sd = i2c_get_clientdata(client); v4l2_device_unregister_subdev(sd); + i2c_set_clientdata(client, NULL); kfree(sd); return 0; } diff --git a/drivers/media/video/tea6415c.c b/drivers/media/video/tea6415c.c index 1585839..49a6606 100644 --- a/drivers/media/video/tea6415c.c +++ b/drivers/media/video/tea6415c.c @@ -164,6 +164,7 @@ static int tea6415c_remove(struct i2c_client *client) struct v4l2_subdev *sd = i2c_get_clientdata(client); v4l2_device_unregister_subdev(sd); + i2c_set_clientdata(client, NULL); kfree(sd); return 0; } diff --git a/drivers/media/video/tea6420.c b/drivers/media/video/tea6420.c index 6bf6bc7..821085d 100644 --- a/drivers/media/video/tea6420.c +++ b/drivers/media/video/tea6420.c @@ -146,6 +146,7 @@ static int tea6420_remove(struct i2c_client *client) struct v4l2_subdev *sd = i2c_get_clientdata(client); v4l2_device_unregister_subdev(sd); + i2c_set_clientdata(client, NULL); kfree(sd); return 0; } diff --git a/drivers/media/video/ths7303.c b/drivers/media/video/ths7303.c index 21781f8..d411a73 100644 --- a/drivers/media/video/ths7303.c +++ b/drivers/media/video/ths7303.c @@ -114,6 +114,7 @@ static int ths7303_remove(struct i2c_client *client) struct v4l2_subdev *sd = i2c_get_clientdata(client); v4l2_device_unregister_subdev(sd); + i2c_set_clientdata(client, NULL); kfree(sd); return 0; -- 1.7.0 -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
