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| author | Mark M. Hoffman <mhoffman@lightlink.com> | 2006-07-01 17:16:06 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-07-12 15:43:07 -0700 |
| commit | b39ad0cf7c19fc14e8f823b1b36245f7a3711655 (patch) | |
| tree | f30e4dcfb21bc6aae1dc8300cef28b912339d72c /drivers/i2c | |
| parent | 5d925fecac26651e6b0e19cf4ca16933aa640f99 (diff) | |
| download | lwn-b39ad0cf7c19fc14e8f823b1b36245f7a3711655.tar.gz lwn-b39ad0cf7c19fc14e8f823b1b36245f7a3711655.zip | |
[PATCH] i2c: Handle i2c_add_adapter failure in i2c algorithm drivers
Content-Disposition: inline; filename=i2c-algo-error-handling-fix.patch
It is possible for i2c_add_adapter() to fail. Several I2C algorithm
drivers ignore that fact. This (compile-tested only) patch fixes them.
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/algos/i2c-algo-bit.c | 3 | ||||
| -rw-r--r-- | drivers/i2c/algos/i2c-algo-ite.c | 4 | ||||
| -rw-r--r-- | drivers/i2c/algos/i2c-algo-pca.c | 6 | ||||
| -rw-r--r-- | drivers/i2c/algos/i2c-algo-pcf.c | 8 | ||||
| -rw-r--r-- | drivers/i2c/algos/i2c-algo-sibyte.c | 4 |
5 files changed, 11 insertions, 14 deletions
diff --git a/drivers/i2c/algos/i2c-algo-bit.c b/drivers/i2c/algos/i2c-algo-bit.c index df05df1a0ef6..3d6fc82c2cfc 100644 --- a/drivers/i2c/algos/i2c-algo-bit.c +++ b/drivers/i2c/algos/i2c-algo-bit.c @@ -544,8 +544,7 @@ int i2c_bit_add_bus(struct i2c_adapter *adap) adap->timeout = 100; /* default values, should */ adap->retries = 3; /* be replaced by defines */ - i2c_add_adapter(adap); - return 0; + return i2c_add_adapter(adap); } diff --git a/drivers/i2c/algos/i2c-algo-ite.c b/drivers/i2c/algos/i2c-algo-ite.c index 2db7bfc85225..70d8eefb5efc 100644 --- a/drivers/i2c/algos/i2c-algo-ite.c +++ b/drivers/i2c/algos/i2c-algo-ite.c @@ -742,10 +742,8 @@ int i2c_iic_add_bus(struct i2c_adapter *adap) adap->retries = 3; /* be replaced by defines */ adap->flags = 0; - i2c_add_adapter(adap); iic_init(iic_adap); - - return 0; + return i2c_add_adapter(adap); } diff --git a/drivers/i2c/algos/i2c-algo-pca.c b/drivers/i2c/algos/i2c-algo-pca.c index 82946acab4c7..b88a6fcf7bd0 100644 --- a/drivers/i2c/algos/i2c-algo-pca.c +++ b/drivers/i2c/algos/i2c-algo-pca.c @@ -374,10 +374,10 @@ int i2c_pca_add_bus(struct i2c_adapter *adap) adap->timeout = 100; /* default values, should */ adap->retries = 3; /* be replaced by defines */ - rval = pca_init(pca_adap); + if ((rval = pca_init(pca_adap))) + return rval; - if (!rval) - i2c_add_adapter(adap); + rval = i2c_add_adapter(adap); return rval; } diff --git a/drivers/i2c/algos/i2c-algo-pcf.c b/drivers/i2c/algos/i2c-algo-pcf.c index 6e498df1f717..5b24930adb5a 100644 --- a/drivers/i2c/algos/i2c-algo-pcf.c +++ b/drivers/i2c/algos/i2c-algo-pcf.c @@ -479,9 +479,11 @@ int i2c_pcf_add_bus(struct i2c_adapter *adap) adap->timeout = 100; /* default values, should */ adap->retries = 3; /* be replaced by defines */ - rval = pcf_init_8584(pcf_adap); - if (!rval) - i2c_add_adapter(adap); + if ((rval = pcf_init_8584(pcf_adap))) + return rval; + + rval = i2c_add_adapter(adap); + return rval; } diff --git a/drivers/i2c/algos/i2c-algo-sibyte.c b/drivers/i2c/algos/i2c-algo-sibyte.c index 3df3f09995c2..32d41c6fac0f 100644 --- a/drivers/i2c/algos/i2c-algo-sibyte.c +++ b/drivers/i2c/algos/i2c-algo-sibyte.c @@ -173,9 +173,7 @@ int i2c_sibyte_add_bus(struct i2c_adapter *i2c_adap, int speed) printk("\n"); } - i2c_add_adapter(i2c_adap); - - return 0; + return i2c_add_adapter(i2c_adap); } |