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hwmon: (pmbus) Use krealloc to allocate attribute memory
So far, attribute memory was allocated by pre-calculating the maximum possible amount of attributes. Not only does this waste memory, it is also risky because the calculation might be wrong. It also requires a lot of defines to specify the maximum number of attributes per class. Allocate attribute memory using krealloc() instead. That means we have to use kfree(), since devm_krealloc() does not exist, but that is still less costly and less risky than trying to predict the number of attributes at the beginning. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Guenter Roeck
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Feb 6, 2013
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