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authorJohannes Stezenbach <js@linuxtv.org>2005-05-16 21:54:32 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-05-17 07:59:30 -0700
commitb1471c4f67321c09359d6fa8eb5c72c2463db081 (patch)
tree8bae38bb68c71704351ae036ffcb17a932976be4 /drivers/media
parentb8742700f13163ffa00cddce2a3c940b9ab2ab5a (diff)
[PATCH] dvb: dib3000: add NULL pointer check
prevent NULL pointer related Oopses (Patrick Boettcher) Signed-off-by: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/dvb/frontends/dib3000mb.c2
-rw-r--r--drivers/media/dvb/frontends/dib3000mc.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/media/dvb/frontends/dib3000mb.c b/drivers/media/dvb/frontends/dib3000mb.c
index f2fbb7c1598..6f52d649e97 100644
--- a/drivers/media/dvb/frontends/dib3000mb.c
+++ b/drivers/media/dvb/frontends/dib3000mb.c
@@ -61,7 +61,7 @@ static int dib3000mb_set_frontend(struct dvb_frontend* fe,
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));
diff --git a/drivers/media/dvb/frontends/dib3000mc.c b/drivers/media/dvb/frontends/dib3000mc.c
index bb0abdc78f3..888f10a5e96 100644
--- a/drivers/media/dvb/frontends/dib3000mc.c
+++ b/drivers/media/dvb/frontends/dib3000mc.c
@@ -463,7 +463,7 @@ static int dib3000mc_set_frontend(struct dvb_frontend* fe,
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));