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linux-user/signal.c: Correct error path for AArch64 do_rt_sigreturn

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The error path in AArch64 do_rt_sigreturn() which fails before
attempting lock_user_struct() was doing an unlock_user_struct()
on an uninitialized variable. Initialize frame to NULL so we
can use the same error-exit path in all cases (unlock of NULL
is permitted and does nothing).

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
This commit is contained in:
Peter Maydell 2014-03-12 13:06:00 +00:00 committed by Riku Voipio
parent 6fffa26244
commit 7f72cd235f
1 changed files with 1 additions and 1 deletions
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linux-user/signal.c
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@ -1340,7 +1340,7 @@ static void setup_frame(int sig, struct target_sigaction *ka,
long do_rt_sigreturn(CPUARMState *env)
{
struct target_rt_sigframe *frame;
struct target_rt_sigframe *frame = NULL;
abi_ulong frame_addr = env->xregs[31];
if (frame_addr & 15) {