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[2/2] DVB: dvb_frontend: check function pointers on reinitialize

Message ID 1314207232-6031-2-git-send-email-obi@linuxtv.org (mailing list archive)
State New, archived
Headers show

Commit Message

Andreas Oberritter Aug. 24, 2011, 5:33 p.m. UTC 
Signed-off-by: Andreas Oberritter <obi@linuxtv.org>
---
 drivers/media/dvb/dvb-core/dvb_frontend.c |    6 ++----
 1 files changed, 2 insertions(+), 4 deletions(-)
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Patch

diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c
index f433a88..79a3cc3 100644
--- a/drivers/media/dvb/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb/dvb-core/dvb_frontend.c
@@ -576,12 +576,10 @@  restart:
 
 		if (fepriv->reinitialise) {
 			dvb_frontend_init(fe);
-			if (fepriv->tone != -1) {
+			if (fe->ops.set_tone && fepriv->tone != -1)
 				fe->ops.set_tone(fe, fepriv->tone);
-			}
-			if (fepriv->voltage != -1) {
+			if (fe->ops.set_voltage && fepriv->voltage != -1)
 				fe->ops.set_voltage(fe, fepriv->voltage);
-			}
 			fepriv->reinitialise = 0;
 		}