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authorJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>2010-08-25 12:19:53 -0700
committerJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>2010-08-25 12:19:53 -0700
commitfb27cfbcbd2865b0e731c4aae47df71778da805e (patch)
treebc321b782bb4234a7d6a5cb019c31c3843ab2506 /drivers/dma/iop-adma.c
parent6280f190da4dd083f14f704be6b3314311a7eacb (diff)
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xenfs/xenbus: report partial reads/writes correctly
copy_(to|from)_user return the number of uncopied bytes, so a successful return is 0, and any non-zero result indicates some degree of failure. Reported-by: "Jun Zhu (Intern)" <Jun.Zhu@citrix.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Diffstat (limited to 'drivers/dma/iop-adma.c')
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