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Diffstat (limited to 'arch/s390/kernel/compat_linux.c')
-rw-r--r--arch/s390/kernel/compat_linux.c60
1 files changed, 33 insertions, 27 deletions
diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
index 664c669b185..5236fdb17fc 100644
--- a/arch/s390/kernel/compat_linux.c
+++ b/arch/s390/kernel/compat_linux.c
@@ -495,29 +495,34 @@ sys32_rt_sigqueueinfo(int pid, int sig, compat_siginfo_t __user *uinfo)
* sys32_execve() executes a new program after the asm stub has set
* things up for us. This should basically do what I want it to.
*/
-asmlinkage long
-sys32_execve(struct pt_regs regs)
+asmlinkage long sys32_execve(void)
{
- int error;
- char * filename;
+ struct pt_regs *regs = task_pt_regs(current);
+ char *filename;
+ unsigned long result;
+ int rc;
- filename = getname(compat_ptr(regs.orig_gpr2));
- error = PTR_ERR(filename);
- if (IS_ERR(filename))
+ filename = getname(compat_ptr(regs->orig_gpr2));
+ if (IS_ERR(filename)) {
+ result = PTR_ERR(filename);
goto out;
- error = compat_do_execve(filename, compat_ptr(regs.gprs[3]),
- compat_ptr(regs.gprs[4]), &regs);
- if (error == 0)
- {
- task_lock(current);
- current->ptrace &= ~PT_DTRACE;
- task_unlock(current);
- current->thread.fp_regs.fpc=0;
- asm volatile("sfpc %0,0" : : "d" (0));
}
+ rc = compat_do_execve(filename, compat_ptr(regs->gprs[3]),
+ compat_ptr(regs->gprs[4]), regs);
+ if (rc) {
+ result = rc;
+ goto out_putname;
+ }
+ task_lock(current);
+ current->ptrace &= ~PT_DTRACE;
+ task_unlock(current);
+ current->thread.fp_regs.fpc=0;
+ asm volatile("sfpc %0,0" : : "d" (0));
+ result = regs->gprs[2];
+out_putname:
putname(filename);
out:
- return error;
+ return result;
}
@@ -918,19 +923,20 @@ asmlinkage long sys32_write(unsigned int fd, char __user * buf, size_t count)
return sys_write(fd, buf, count);
}
-asmlinkage long sys32_clone(struct pt_regs regs)
+asmlinkage long sys32_clone(void)
{
- unsigned long clone_flags;
- unsigned long newsp;
+ struct pt_regs *regs = task_pt_regs(current);
+ unsigned long clone_flags;
+ unsigned long newsp;
int __user *parent_tidptr, *child_tidptr;
- clone_flags = regs.gprs[3] & 0xffffffffUL;
- newsp = regs.orig_gpr2 & 0x7fffffffUL;
- parent_tidptr = compat_ptr(regs.gprs[4]);
- child_tidptr = compat_ptr(regs.gprs[5]);
- if (!newsp)
- newsp = regs.gprs[15];
- return do_fork(clone_flags, newsp, &regs, 0,
+ clone_flags = regs->gprs[3] & 0xffffffffUL;
+ newsp = regs->orig_gpr2 & 0x7fffffffUL;
+ parent_tidptr = compat_ptr(regs->gprs[4]);
+ child_tidptr = compat_ptr(regs->gprs[5]);
+ if (!newsp)
+ newsp = regs->gprs[15];
+ return do_fork(clone_flags, newsp, regs, 0,
parent_tidptr, child_tidptr);
}