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[PATCH] sysfs: (rest) if show/store is missing return -EIO

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sysfs: fix the rest of the kernel so if an attribute doesn't
       implement show or store method read/write will return
       -EIO instead of 0 or -EINVAL or -EPERM.

Signed-off-by: Dmitry Torokhov <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Dmitry Torokhov 2005-04-29 01:27:34 -05:00 • committed by Greg Kroah-Hartman
commit 70f2817a43
7 changed files with 12 additions and 12 deletions
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4
drivers/cpufreq/cpufreq.c
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@ -521,7 +521,7 @@ static ssize_t show(struct kobject * kobj, struct attribute * attr ,char * buf)
policy = cpufreq_cpu_get(policy->cpu);
if (!policy)
return -EINVAL;
ret = fattr->show ? fattr->show(policy,buf) : 0;
ret = fattr->show ? fattr->show(policy,buf) : -EIO;
cpufreq_cpu_put(policy);
return ret;
}
@ -535,7 +535,7 @@ static ssize_t store(struct kobject * kobj, struct attribute * attr,
policy = cpufreq_cpu_get(policy->cpu);
if (!policy)
return -EINVAL;
ret = fattr->store ? fattr->store(policy,buf,count) : 0;
ret = fattr->store ? fattr->store(policy,buf,count) : -EIO;
cpufreq_cpu_put(policy);
return ret;
}