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authorAndy Walls <awalls@radix.net>2008-05-26 00:31:17 -0400
committerMauro Carvalho Chehab <mchehab@infradead.org>2008-06-05 05:35:44 -0400
commit3b4a9714f43a1d675a4352260a12daae197f37c3 (patch)
treea095208ac75a02bf70ed33d4f4440ebaa354276e /drivers
parent5cf3f5cd1f6ee0d81b75c659c732dd8dd245a350 (diff)
V4L/DVB (7922): tuner-simple: fix tuner_warn() induced kernel oops in simple_tuner_attach()
The tuner_warn() macro relies on the local variable "priv" to be a valid pointer. There was a case in simple_tuner_attach() where this cannot be the case yet, so tuner_warn() would dereference a NULL "priv" pointer. Changed the tuner_warn() to a printk() with the originally intended output format. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/media/common/tuners/tuner-simple.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/media/common/tuners/tuner-simple.c b/drivers/media/common/tuners/tuner-simple.c
index be8d903171b7..266c255cf0d8 100644
--- a/drivers/media/common/tuners/tuner-simple.c
+++ b/drivers/media/common/tuners/tuner-simple.c
@@ -1018,8 +1018,10 @@ struct dvb_frontend *simple_tuner_attach(struct dvb_frontend *fe,
1018 fe->ops.i2c_gate_ctrl(fe, 1); 1018 fe->ops.i2c_gate_ctrl(fe, 1);
1019 1019
1020 if (1 != i2c_transfer(i2c_adap, &msg, 1)) 1020 if (1 != i2c_transfer(i2c_adap, &msg, 1))
1021 tuner_warn("unable to probe %s, proceeding anyway.", 1021 printk(KERN_WARNING "tuner-simple %d-%04x: "
1022 tuners[type].name); 1022 "unable to probe %s, proceeding anyway.",
1023 i2c_adapter_id(i2c_adap), i2c_addr,
1024 tuners[type].name);
1023 1025
1024 if (fe->ops.i2c_gate_ctrl) 1026 if (fe->ops.i2c_gate_ctrl)
1025 fe->ops.i2c_gate_ctrl(fe, 0); 1027 fe->ops.i2c_gate_ctrl(fe, 0);