diff options
| author | Kees Cook <keescook@chromium.org> | 2012-11-15 22:12:17 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2012-11-19 14:14:18 +0000 |
| commit | ad75b51459ae076a0d406391496f81b897bf6992 (patch) | |
| tree | c34449b78cd833c2506237eb09d8cd291a2b63c3 /arch/arm/lib/uaccess_with_memcpy.c | |
| parent | 9b790d71d58be65f9508ab60920eb978af828412 (diff) | |
ARM: 7579/1: arch/allow a scno of -1 to not cause a SIGILL
On tracehook-friendly platforms, a system call number of -1 falls
through without running much code or taking much action.
ARM is different. This adds a short-circuit check in the trace path to
avoid any additional work, as suggested by Russell King, to make sure
that ARM behaves the same way as other platforms.
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Will Drewry <wad@chromium.org>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/lib/uaccess_with_memcpy.c')
0 files changed, 0 insertions, 0 deletions