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signal/unicore32: Remove tsk parameter from __do_user_fault 

The __do_user_fault function is always called with tsk == current.
Make that obvious by removing the tsk parameter.

This makes it clear that __do_user_fault calls force_sig_fault
on the current task.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
This commit is contained in:
Eric W. Biederman 2019-02-07 10:05:12 -06:00
parent fd65cc848e
commit ec74e9205e
1 changed files with 6 additions and 5 deletions
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11
arch/unicore32/mm/fault.c
View File

@ -116,10 +116,11 @@ static void __do_kernel_fault(struct mm_struct *mm, unsigned long addr,
* Something tried to access memory that isn't in our memory map..
* User mode accesses just cause a SIGSEGV
*/
static void __do_user_fault(struct task_struct *tsk, unsigned long addr,
unsigned int fsr, unsigned int sig, int code,
struct pt_regs *regs)
static void __do_user_fault(unsigned long addr, unsigned int fsr,
unsigned int sig, int code, struct pt_regs *regs)
{
struct task_struct *tsk = current;
tsk->thread.address = addr;
tsk->thread.error_code = fsr;
tsk->thread.trap_no = 14;
@ -136,7 +137,7 @@ void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
* have no context to handle this fault with.
*/
if (user_mode(regs))
__do_user_fault(tsk, addr, fsr, SIGSEGV, SEGV_MAPERR, regs);
__do_user_fault(addr, fsr, SIGSEGV, SEGV_MAPERR, regs);
else
__do_kernel_fault(mm, addr, fsr, regs);
}
@ -310,7 +311,7 @@ static int do_pf(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
code = fault == VM_FAULT_BADACCESS ? SEGV_ACCERR : SEGV_MAPERR;
}
__do_user_fault(tsk, addr, fsr, sig, code, regs);
__do_user_fault(addr, fsr, sig, code, regs);
return 0;
no_context: