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| author | Al Viro <viro@ftp.linux.org.uk> | 2010-09-28 18:50:37 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2010-10-18 16:59:02 +0100 |
| commit | 8f5a00eb422ed86e77bb8f67e08b9fe6d30f679a (patch) | |
| tree | 6b625361c9581fb71fd2d005b5de54804d4f9798 /arch/mips/kernel/unaligned.c | |
| parent | e5b377a8fb7b05f27647698ac739a0504cb2bf80 (diff) | |
| download | lwn-8f5a00eb422ed86e77bb8f67e08b9fe6d30f679a.tar.gz lwn-8f5a00eb422ed86e77bb8f67e08b9fe6d30f679a.zip | |
MIPS: Sanitize restart logics
Put the original syscall number into ->regs[0] when we leave syscall
with error. Use it in restart logics. Everything else will have
it 0 since we pass through SAVE_SOME on all the ways in. Note that
in places like bad_stack and inllegal_syscall we leave it 0 - it's not
restartable.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-kernel@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1698/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel/unaligned.c')
| -rw-r--r-- | arch/mips/kernel/unaligned.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/mips/kernel/unaligned.c b/arch/mips/kernel/unaligned.c index 69b039ca8d83..33d5a5ce4a29 100644 --- a/arch/mips/kernel/unaligned.c +++ b/arch/mips/kernel/unaligned.c @@ -109,8 +109,6 @@ static void emulate_load_store_insn(struct pt_regs *regs, unsigned long value; unsigned int res; - regs->regs[0] = 0; - /* * This load never faults. */ |