diff options
Diffstat (limited to 'arch/x86/mm/kmemcheck/kmemcheck.c')
| -rw-r--r-- | arch/x86/mm/kmemcheck/kmemcheck.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/arch/x86/mm/kmemcheck/kmemcheck.c b/arch/x86/mm/kmemcheck/kmemcheck.c index 8cc18334414..dd89a13f105 100644 --- a/arch/x86/mm/kmemcheck/kmemcheck.c +++ b/arch/x86/mm/kmemcheck/kmemcheck.c @@ -78,10 +78,16 @@ early_initcall(kmemcheck_init); */ static int __init param_kmemcheck(char *str) { + int val; + int ret; + if (!str) return -EINVAL; - sscanf(str, "%d", &kmemcheck_enabled); + ret = kstrtoint(str, 0, &val); + if (ret) + return ret; + kmemcheck_enabled = val; return 0; } @@ -337,7 +343,7 @@ bool kmemcheck_is_obj_initialized(unsigned long addr, size_t size) if (!shadow) return true; - status = kmemcheck_shadow_test(shadow, size); + status = kmemcheck_shadow_test_all(shadow, size); return status == KMEMCHECK_SHADOW_INITIALIZED; } @@ -631,6 +637,8 @@ bool kmemcheck_fault(struct pt_regs *regs, unsigned long address, if (!pte) return false; + WARN_ON_ONCE(in_nmi()); + if (error_code & 2) kmemcheck_access(regs, address, KMEMCHECK_WRITE); else |