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authorMike Frysinger <vapier.adi@gmail.com>2008-03-07 02:37:41 +0800
committerBryan Wu <cooloney@kernel.org>2008-03-07 02:37:41 +0800
commit0ddeeca25ce33686262459e2387f57bd09574e47 (patch)
treecd33798b51e358260e2089a97e9e3e3de6d8e02b /arch/blackfin/kernel/process.c
parent1307a65130963b061fbaca308b228a0f693a4495 (diff)
[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.c20
1 files changed, 11 insertions, 9 deletions
diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
index 6dedb2da8b6..fb94cbeafad 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 *)&regs->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;
}