[PATCH 3/3] media: drx39xyj driver change to check fe exit flag from release

[Shuah Khan]

Change drx39xyj_release() to check fe exit flag to detect the
device disconnect state and avoid accessing the device after
it has been removed.

Signed-off-by: Shuah Khan <shuah.kh@xxxxxxxxxxx>
---
 drivers/media/dvb-frontends/drx39xyj/drxj.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/media/dvb-frontends/drx39xyj/drxj.c b/drivers/media/dvb-frontends/drx39xyj/drxj.c
index 9482954..54855a9 100644
--- a/drivers/media/dvb-frontends/drx39xyj/drxj.c
+++ b/drivers/media/dvb-frontends/drx39xyj/drxj.c
@@ -12238,7 +12238,9 @@ static void drx39xxj_release(struct dvb_frontend *fe)
 	struct drx39xxj_state *state = fe->demodulator_priv;
 	struct drx_demod_instance *demod = state->demod;
 
-	drxj_close(demod);
+	/* if device is removed don't access it */
+	if (fe->exit != DVB_FE_DEVICE_REMOVED)
+		drxj_close(demod);
 
 	kfree(demod->my_ext_attr);
 	kfree(demod->my_common_attr);
-- 
1.7.10.4

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