[DVB patch 17/37] dib3000: add NULL pointer check

[Johannes Stezenbach <js@linuxtv.org>]

prevent NULL pointer related Oopses (Patrick Boettcher)

Signed-off-by: Johannes Stezenbach <js@linuxtv.org>
---

 drivers/media/dvb/frontends/dib3000mb.c |    2 +-
 drivers/media/dvb/frontends/dib3000mc.c |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

Index: linux-2.6.12-rc4/drivers/media/dvb/frontends/dib3000mb.c
===================================================================
--- linux-2.6.12-rc4.orig/drivers/media/dvb/frontends/dib3000mb.c	2005-05-08 16:21:47.000000000 +0200
+++ linux-2.6.12-rc4/drivers/media/dvb/frontends/dib3000mb.c	2005-05-08 16:22:51.000000000 +0200
@@ -61,7 +61,7 @@ static int dib3000mb_set_frontend(struct
 	fe_code_rate_t fe_cr = FEC_NONE;
 	int search_state, seq;
 
-	if (tuner) {
+	if (tuner && state->config.pll_addr && state->config.pll_set) {
 		dib3000mb_tuner_pass_ctrl(fe,1,state->config.pll_addr(fe));
 		state->config.pll_set(fe, fep, NULL);
 		dib3000mb_tuner_pass_ctrl(fe,0,state->config.pll_addr(fe));
Index: linux-2.6.12-rc4/drivers/media/dvb/frontends/dib3000mc.c
===================================================================
--- linux-2.6.12-rc4.orig/drivers/media/dvb/frontends/dib3000mc.c	2005-05-08 16:21:47.000000000 +0200
+++ linux-2.6.12-rc4/drivers/media/dvb/frontends/dib3000mc.c	2005-05-08 16:22:51.000000000 +0200
@@ -463,7 +463,7 @@ static int dib3000mc_set_frontend(struct
 	int search_state,auto_val;
 	u16 val;
 
-	if (tuner) { /* initial call from dvb */
+	if (tuner && state->config.pll_addr && state->config.pll_set) { /* initial call from dvb */
 		dib3000mc_tuner_pass_ctrl(fe,1,state->config.pll_addr(fe));
 		state->config.pll_set(fe,fep,NULL);
 		dib3000mc_tuner_pass_ctrl(fe,0,state->config.pll_addr(fe));

--

-
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