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(parent: 5fe9b74) | patch
sysfs: return correct error code on unimplemented mmap()
authorVladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Wed, 30 Oct 2013 12:08:32 +0000 (14:08 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 30 Oct 2013 17:21:39 +0000 (10:21 -0700)
commit4d6c590426a26447b09f4c9676f0fb2d28f7d82b
tree088b98186e167393f597de9844977955ab45488ftree | snapshot
parent5fe9b7478020fbd127b1687020c6d107978c68d0commit | diff
sysfs: return correct error code on unimplemented mmap()

Both POSIX.1-2008 and Linux Programmer's Manual have a dedicated return
error code for a case, when a file doesn't support mmap(), it's ENODEV.

This change replaces overloaded EINVAL with ENODEV in a situation
described above for sysfs binary files.

Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
fs/sysfs/file.c diff | blob | history
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