xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Vork 0
Code Kwesties Pull-aanvragen Actions Packages Projecten Publicaties Wiki Activiteit

signal/unicore32: Generate siginfo in ucs32_notify_die

Bladeren bron 
Pass the signal number, and the signal code, and the faulting
address into uc32_notify_die so the callers do not need
to generate a struct siginfo.

In ucs32_ntoify_die use the newly passed in information to
call force_sig_fault to generate the siginfo and send the error.

This simplifies the code making the chances of bugs much less likely.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
This commit is contained in:
Eric W. Biederman
2018-04-19 18:13:51 -05:00
bovenliggende 5ee527d7ce
commit ccebcb1f5f
3 gewijzigde bestanden met toevoegingen van 9 en 17 verwijderingen
Download Patch-bestand Download Diff-bestand Expand all files Collapse all files

18
arch/unicore32/mm/fault.c
Bestand weergeven

@@ -466,7 +466,6 @@ asmlinkage void do_DataAbort(unsigned long addr, unsigned int fsr,
struct pt_regs *regs)
{
const struct fsr_info *inf = fsr_info + fsr_fs(fsr);
struct siginfo info;
if (!inf->fn(addr, fsr & ~FSR_LNX_PF, regs))
return;
@@ -474,19 +473,14 @@ asmlinkage void do_DataAbort(unsigned long addr, unsigned int fsr,
printk(KERN_ALERT "Unhandled fault: %s (0x%03x) at 0x%08lx\n",
inf->name, fsr, addr);
clear_siginfo(&info);
info.si_signo = inf->sig;
info.si_errno = 0;
info.si_code = inf->code;
info.si_addr = (void __user *)addr;
uc32_notify_die("", regs, &info, fsr, 0);
uc32_notify_die("", regs, inf->sig, inf->code, (void __user *)addr,
fsr, 0);
}
asmlinkage void do_PrefetchAbort(unsigned long addr,
unsigned int ifsr, struct pt_regs *regs)
{
const struct fsr_info *inf = fsr_info + fsr_fs(ifsr);
struct siginfo info;
if (!inf->fn(addr, ifsr | FSR_LNX_PF, regs))
return;
@@ -494,10 +488,6 @@ asmlinkage void do_PrefetchAbort(unsigned long addr,
printk(KERN_ALERT "Unhandled prefetch abort: %s (0x%03x) at 0x%08lx\n",
inf->name, ifsr, addr);
clear_siginfo(&info);
info.si_signo = inf->sig;
info.si_errno = 0;
info.si_code = inf->code;
info.si_addr = (void __user *)addr;
uc32_notify_die("", regs, &info, ifsr, 0);
uc32_notify_die("", regs, inf->sig, inf->code, (void __user *)addr,
ifsr, 0);
}