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| author | Jon Burgess <jburgess@uklinux.net> | 2005-09-27 21:45:26 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-09-28 07:46:40 -0700 |
| commit | 88bdcc5d5e9a7ea280f99262f48b70aba9d949bf (patch) | |
| tree | 2543d9a35e2ae0e6ff577065edd577ed5b1dfdb1 | |
| parent | 0b8dd17762194ec77066d339e0b2866b0c66b715 (diff) | |
| download | linux-88bdcc5d5e9a7ea280f99262f48b70aba9d949bf.tar.bz2 | |
[PATCH] dvb: fix NULL pointer dereference when loading the budget-av module
Ralph Metzler wrote:
> AFAIR, there is a bug in tda10021.c in tda10021_readreg() which
> references state->frontend.dvb->num
> This is fatal if the frontend is not at the probed address and thus
> not yet registered (no dvb entry set yet -> NULL pointer ...).
The attached patch should get rid of the oops.
Signed-off-by: Jon Burgess <jburgess@uklinux.net>
Cc: Johannes Stezenbach <js@linuxtv.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | drivers/media/dvb/frontends/tda10021.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/media/dvb/frontends/tda10021.c b/drivers/media/dvb/frontends/tda10021.c index 87d5f4d8790f..eaf130e666d8 100644 --- a/drivers/media/dvb/frontends/tda10021.c +++ b/drivers/media/dvb/frontends/tda10021.c @@ -100,8 +100,8 @@ static u8 tda10021_readreg (struct tda10021_state* state, u8 reg) ret = i2c_transfer (state->i2c, msg, 2); if (ret != 2) - printk("DVB: TDA10021(%d): %s: readreg error (ret == %i)\n", - state->frontend.dvb->num, __FUNCTION__, ret); + printk("DVB: TDA10021: %s: readreg error (ret == %i)\n", + __FUNCTION__, ret); return b1[0]; } |