signal: replace sigset_to_compat() with put_compat_sigset()

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There are 4 callers of sigset_to_compat() in the entire kernel.  One is
in sparc compat rt_sigaction(2), the rest are in kernel/signal.c itself.
All are followed by copy_to_user(), and all but the sparc one are under
"if it's big-endian..." ifdefs.

Let's transform sigset_to_compat() into put_compat_sigset() that also
calls copy_to_user().

Suggested-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

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Dmitry V. Levin 2017-08-22 02:16:11 +03:00 • committed by Al Viro

parent 2bd6bf03f4

commit f454322efb

4 changed files with 25 additions and 31 deletions

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6

arch/sparc/kernel/sys_sparc32.c

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3

include/linux/compat.h

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20

kernel/compat.c

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27

kernel/signal.c

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