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| author | Patrick Boettcher <Patrick.Boettcher@dibcom.fr> | 2011-08-03 12:08:21 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-08-06 09:25:15 -0300 |
| commit | 79fcce3230b140f7675f8529ee53fe2f9644f902 (patch) | |
| tree | 548f87873e553e0c0e69e13f78c360e0d351f857 /drivers/media/dvb/frontends/dibx000_common.h | |
| parent | a5f2db539bd2a977cdee3fecc5c15dd0941c1ab3 (diff) | |
| download | op-kernel-dev-79fcce3230b140f7675f8529ee53fe2f9644f902.zip op-kernel-dev-79fcce3230b140f7675f8529ee53fe2f9644f902.tar.gz | |
[media] DiBcom: protect the I2C bufer access
This patch protects the I2C buffer access in order to manage concurrent
access. This protection is done using mutex.
Furthermore, for the dib9000, if a pid filtering command is
received during the tuning, this pid filtering command is delayed to
avoid any concurrent access issue.
Cc: Mauro Carvalho Chehab <mchehab@redhat.com>
Cc: Florian Mickler <florian@mickler.org>
Cc: stable@kernel.org
Signed-off-by: Olivier Grenie <olivier.grenie@dibcom.fr>
Signed-off-by: Patrick Boettcher <Patrick.Boettcher@dibcom.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/dvb/frontends/dibx000_common.h')
| -rw-r--r-- | drivers/media/dvb/frontends/dibx000_common.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/media/dvb/frontends/dibx000_common.h b/drivers/media/dvb/frontends/dibx000_common.h index f031165..5e01147 100644 --- a/drivers/media/dvb/frontends/dibx000_common.h +++ b/drivers/media/dvb/frontends/dibx000_common.h @@ -33,6 +33,7 @@ struct dibx000_i2c_master { struct i2c_msg msg[34]; u8 i2c_write_buffer[8]; u8 i2c_read_buffer[2]; + struct mutex i2c_buffer_lock; }; extern int dibx000_init_i2c_master(struct dibx000_i2c_master *mst, |
