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V4L/DVB (7184): make hybrid_tuner_request_state tolerant of devices without i2c adapters 

Some dvb demodulators access the tuner directly without using i2c.
In these cases, i2c_adap may be NULL.  This patch fixes
hybrid_tuner_request_state to allow for NULL i2c_adapters.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Michael Krufky 2008-04-22 14:42:05 -03:00 committed by Mauro Carvalho Chehab
parent bdb0aace95
commit ab6c46e24a
1 changed files with 6 additions and 4 deletions
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10
drivers/media/video/tuner-i2c.h
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@ -83,7 +83,8 @@ static inline int tuner_i2c_xfer_send_recv(struct tuner_i2c_props *props,
#define tuner_printk(kernlvl, i2cprops, fmt, arg...) do { \
printk(kernlvl "%s %d-%04x: " fmt, i2cprops.name, \
i2c_adapter_id(i2cprops.adap), \
i2cprops.adap ? \
i2c_adapter_id(i2cprops.adap) : -1, \
i2cprops.addr, ##arg); \
} while (0)
@ -128,9 +129,10 @@ static inline int tuner_i2c_xfer_send_recv(struct tuner_i2c_props *props,
({ \
int __ret = 0; \
list_for_each_entry(state, &list, hybrid_tuner_instance_list) { \
if ((i2c_adapter_id(state->i2c_props.adap) == \
i2c_adapter_id(i2cadap)) && \
(state->i2c_props.addr == i2caddr)) { \
if ((state->i2c_props.addr == i2caddr) && \
((state->i2c_props.adap ? \
i2c_adapter_id(state->i2c_props.adap) : -1) == \
(i2cadap ? i2c_adapter_id(i2cadap) : -1))) { \
__tuner_info(state->i2c_props, \
"attaching existing instance\n"); \
state->i2c_props.count++; \