diff options
| author | Paul Mundt <lethal@linux-sh.org> | 2008-09-24 14:37:35 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2008-09-24 14:37:35 +0900 |
| commit | 1bec157a1f747d038026efabebdee4c929147b63 (patch) | |
| tree | 500ff4ba3e45c5cfe40021ccb7cec5b56ef6e0bc | |
| parent | aa88f169d6fc4305125b6917d9d5f2e08211f011 (diff) | |
sh: Force pending restarted system calls to return -EINTR.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| -rw-r--r-- | arch/sh/kernel/signal_32.c | 6 | ||||
| -rw-r--r-- | arch/sh/kernel/signal_64.c | 18 |
2 files changed, 18 insertions, 6 deletions
diff --git a/arch/sh/kernel/signal_32.c b/arch/sh/kernel/signal_32.c index be194d0bd7d..69d09c0b349 100644 --- a/arch/sh/kernel/signal_32.c +++ b/arch/sh/kernel/signal_32.c @@ -216,6 +216,9 @@ asmlinkage int sys_sigreturn(unsigned long r4, unsigned long r5, sigset_t set; int r0; + /* Always make any pending restarted system calls return -EINTR */ + current_thread_info()->restart_block.fn = do_no_restart_syscall; + if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) goto badframe; @@ -250,6 +253,9 @@ asmlinkage int sys_rt_sigreturn(unsigned long r4, unsigned long r5, sigset_t set; int r0; + /* Always make any pending restarted system calls return -EINTR */ + current_thread_info()->restart_block.fn = do_no_restart_syscall; + if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) goto badframe; diff --git a/arch/sh/kernel/signal_64.c b/arch/sh/kernel/signal_64.c index 37bd381a7aa..0582ae4739b 100644 --- a/arch/sh/kernel/signal_64.c +++ b/arch/sh/kernel/signal_64.c @@ -375,6 +375,9 @@ asmlinkage int sys_sigreturn(unsigned long r2, unsigned long r3, sigset_t set; long long ret; + /* Always make any pending restarted system calls return -EINTR */ + current_thread_info()->restart_block.fn = do_no_restart_syscall; + if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) goto badframe; @@ -412,6 +415,9 @@ asmlinkage int sys_rt_sigreturn(unsigned long r2, unsigned long r3, stack_t __user st; long long ret; + /* Always make any pending restarted system calls return -EINTR */ + current_thread_info()->restart_block.fn = do_no_restart_syscall; + if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) goto badframe; @@ -539,7 +545,7 @@ static void setup_frame(int sig, struct k_sigaction *ka, * On SH5 all edited pointers are subject to NEFF */ DEREF_REG_PR = (DEREF_REG_PR & NEFF_SIGN) ? - (DEREF_REG_PR | NEFF_MASK) : DEREF_REG_PR; + (DEREF_REG_PR | NEFF_MASK) : DEREF_REG_PR; } else { /* * Different approach on SH5. @@ -554,7 +560,7 @@ static void setup_frame(int sig, struct k_sigaction *ka, */ DEREF_REG_PR = (unsigned long) frame->retcode | 0x01; DEREF_REG_PR = (DEREF_REG_PR & NEFF_SIGN) ? - (DEREF_REG_PR | NEFF_MASK) : DEREF_REG_PR; + (DEREF_REG_PR | NEFF_MASK) : DEREF_REG_PR; if (__copy_to_user(frame->retcode, (unsigned long long)sa_default_restorer & (~1), 16) != 0) @@ -570,7 +576,7 @@ static void setup_frame(int sig, struct k_sigaction *ka, */ regs->regs[REG_SP] = (unsigned long) frame; regs->regs[REG_SP] = (regs->regs[REG_SP] & NEFF_SIGN) ? - (regs->regs[REG_SP] | NEFF_MASK) : regs->regs[REG_SP]; + (regs->regs[REG_SP] | NEFF_MASK) : regs->regs[REG_SP]; regs->regs[REG_ARG1] = signal; /* Arg for signal handler */ /* FIXME: @@ -656,7 +662,7 @@ static void setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, * On SH5 all edited pointers are subject to NEFF */ DEREF_REG_PR = (DEREF_REG_PR & NEFF_SIGN) ? - (DEREF_REG_PR | NEFF_MASK) : DEREF_REG_PR; + (DEREF_REG_PR | NEFF_MASK) : DEREF_REG_PR; } else { /* * Different approach on SH5. @@ -672,7 +678,7 @@ static void setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, DEREF_REG_PR = (unsigned long) frame->retcode | 0x01; DEREF_REG_PR = (DEREF_REG_PR & NEFF_SIGN) ? - (DEREF_REG_PR | NEFF_MASK) : DEREF_REG_PR; + (DEREF_REG_PR | NEFF_MASK) : DEREF_REG_PR; if (__copy_to_user(frame->retcode, (unsigned long long)sa_default_rt_restorer & (~1), 16) != 0) @@ -687,7 +693,7 @@ static void setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, */ regs->regs[REG_SP] = (unsigned long) frame; regs->regs[REG_SP] = (regs->regs[REG_SP] & NEFF_SIGN) ? - (regs->regs[REG_SP] | NEFF_MASK) : regs->regs[REG_SP]; + (regs->regs[REG_SP] | NEFF_MASK) : regs->regs[REG_SP]; regs->regs[REG_ARG1] = signal; /* Arg for signal handler */ regs->regs[REG_ARG2] = (unsigned long long)(unsigned long)(signed long)&frame->info; regs->regs[REG_ARG3] = (unsigned long long)(unsigned long)(signed long)&frame->uc.uc_mcontext; |