sparc: copy_from_user() should not return -EFAULT

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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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Heiko Carstens 2010-01-05 20:41:48 -08:00 • committed by David S. Miller

parent e04ed38d4e

commit 6df1c17699

2 changed files with 2 additions and 2 deletions

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arch/sparc/include/asm/uaccess_32.h

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2

arch/sparc/include/asm/uaccess_64.h

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