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authorHeiko Carstens <heiko.carstens@de.ibm.com>2010-01-05 20:41:48 -0800
committerDavid S. Miller <davem@davemloft.net>2010-01-05 20:41:48 -0800
commit6df1c176994fab993f3112e3e4145a7d2bae64d0 (patch)
treebfbe02788e9e75be4e24285aa49539463a3539f3 /arch/sparc/configs
parentsparc64: Fix Niagara2 perf event handling. (diff)
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sparc: copy_from_user() should not return -EFAULT
From: Heiko Carstens <heiko.carstens@de.ibm.com> Callers of copy_from_user() expect it to return the number of bytes it could not copy. In no case it is supposed to return -EFAULT. In case of a detected buffer overflow just return the requested length. In addition one could think of a memset that would clear the size of the target object. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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