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| H A D | base.c | diff cba8aafe1e07dfc8bae5ba78be8e02883bd34d31 Tue Sep 22 18:45:38 CDT 2009 Vincent Li <macli@brc.ubc.ca> fs/proc/base.c: fix proc_fault_inject_write() input sanity check
Remove obfuscated zero-length input check and return -EINVAL instead of
-EIO error to make the error message clear to user. Add whitespace
stripping. No functionality changes.
The old code:
echo 1 > /proc/pid/make-it-fail (ok)
echo 1foo > /proc/pid/make-it-fail (-bash: echo: write error: Input/output error)
The new code:
echo 1 > /proc/pid/make-it-fail (ok)
echo 1foo > /proc/pid/make-it-fail (-bash: echo: write error: Invalid argument)
This patch is conservative in changes to not breaking existing
scripts/applications.
Signed-off-by: Vincent Li <macli@brc.ubc.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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