sysfs_ops show vector: size of buffer not required?

From: Himanshu Chauhan
Date: Sun Jan 24 2010 - 02:45:42 EST

Hi All,

The sysfs_ops's show vector doesn't have a size of the
buffer given to the vector, while store on the other hand
has. What is the rationale behind it?

I see most of the implementations doing strcpy in the
show vectors. Ill behaved driver might overwrite the
given buffer when size is not known. Should this be addressed
by providing the buffer size along with the buffer pointer?


Best Regards
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