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| author | Mike Frysinger <vapier.adi@gmail.com> | 2008-03-07 02:37:41 +0800 |
|---|---|---|
| committer | Bryan Wu <cooloney@kernel.org> | 2008-03-07 02:37:41 +0800 |
| commit | 0ddeeca25ce33686262459e2387f57bd09574e47 (patch) | |
| tree | cd33798b51e358260e2089a97e9e3e3de6d8e02b /arch/blackfin/kernel/process.c | |
| parent | 1307a65130963b061fbaca308b228a0f693a4495 (diff) | |
| download | op-kernel-dev-0ddeeca25ce33686262459e2387f57bd09574e47.zip op-kernel-dev-0ddeeca25ce33686262459e2387f57bd09574e47.tar.gz | |
[Blackfin] arch: add missing __user marking to ss_sp member of signalstack and a few userspace system functions
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch/blackfin/kernel/process.c')
| -rw-r--r-- | arch/blackfin/kernel/process.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c index 6dedb2d..fb94cbe 100644 --- a/arch/blackfin/kernel/process.c +++ b/arch/blackfin/kernel/process.c @@ -202,7 +202,7 @@ copy_thread(int nr, unsigned long clone_flags, * sys_execve() executes a new program. */ -asmlinkage int sys_execve(char *name, char **argv, char **envp) +asmlinkage int sys_execve(char __user *name, char __user * __user *argv, char __user * __user *envp) { int error; char *filename; @@ -245,23 +245,25 @@ unsigned long get_wchan(struct task_struct *p) void finish_atomic_sections (struct pt_regs *regs) { + int __user *up0 = (int __user *)®s->p0; + if (regs->pc < ATOMIC_SEQS_START || regs->pc >= ATOMIC_SEQS_END) return; switch (regs->pc) { case ATOMIC_XCHG32 + 2: - put_user(regs->r1, (int *)regs->p0); + put_user(regs->r1, up0); regs->pc += 2; break; case ATOMIC_CAS32 + 2: case ATOMIC_CAS32 + 4: if (regs->r0 == regs->r1) - put_user(regs->r2, (int *)regs->p0); + put_user(regs->r2, up0); regs->pc = ATOMIC_CAS32 + 8; break; case ATOMIC_CAS32 + 6: - put_user(regs->r2, (int *)regs->p0); + put_user(regs->r2, up0); regs->pc += 2; break; @@ -269,7 +271,7 @@ void finish_atomic_sections (struct pt_regs *regs) regs->r0 = regs->r1 + regs->r0; /* fall through */ case ATOMIC_ADD32 + 4: - put_user(regs->r0, (int *)regs->p0); + put_user(regs->r0, up0); regs->pc = ATOMIC_ADD32 + 6; break; @@ -277,7 +279,7 @@ void finish_atomic_sections (struct pt_regs *regs) regs->r0 = regs->r1 - regs->r0; /* fall through */ case ATOMIC_SUB32 + 4: - put_user(regs->r0, (int *)regs->p0); + put_user(regs->r0, up0); regs->pc = ATOMIC_SUB32 + 6; break; @@ -285,7 +287,7 @@ void finish_atomic_sections (struct pt_regs *regs) regs->r0 = regs->r1 | regs->r0; /* fall through */ case ATOMIC_IOR32 + 4: - put_user(regs->r0, (int *)regs->p0); + put_user(regs->r0, up0); regs->pc = ATOMIC_IOR32 + 6; break; @@ -293,7 +295,7 @@ void finish_atomic_sections (struct pt_regs *regs) regs->r0 = regs->r1 & regs->r0; /* fall through */ case ATOMIC_AND32 + 4: - put_user(regs->r0, (int *)regs->p0); + put_user(regs->r0, up0); regs->pc = ATOMIC_AND32 + 6; break; @@ -301,7 +303,7 @@ void finish_atomic_sections (struct pt_regs *regs) regs->r0 = regs->r1 ^ regs->r0; /* fall through */ case ATOMIC_XOR32 + 4: - put_user(regs->r0, (int *)regs->p0); + put_user(regs->r0, up0); regs->pc = ATOMIC_XOR32 + 6; break; } |
