acct01: add EFAULT errno check

Add EFAULT errno check in acct01 testcase.

Link: https://lore.kernel.org/ltp/[email protected]/
Reviewed-by: Petr Vorel <[email protected]>
Signed-off-by: lufei <[email protected]>

testcases/kernel/syscalls/acct/acct01.c

@@ -34,6 +34,7 @@
 #define FILE_TMPFILE		"./tmpfile"
 #define FILE_ELOOP		"test_file_eloop1"
 #define FILE_EROFS		"ro_mntpoint/file"
+#define FILE_EFAULT		"invalid/file/name"
 
 static struct passwd *ltpuser;
 
@@ -46,6 +47,7 @@ static char *file_eloop;
 static char *file_enametoolong;
 static char *file_erofs;
 static char *file_null;
+static char *file_efault;
 
 static void setup_euid(void)
 {
@@ -57,6 +59,16 @@ static void cleanup_euid(void)
 	SAFE_SETEUID(0);
 }
 
+static void setup_emem(void)
+{
+	file_efault = SAFE_MMAP(NULL, 1, PROT_NONE,
+			MAP_ANONYMOUS | MAP_PRIVATE, 0, 0);
+}
+static void cleanup_emem(void)
+{
+	SAFE_MUNMAP(file_efault, 1);
+}
+
 static struct test_case {
 	char **filename;
 	char *desc;
@@ -73,6 +85,7 @@ static struct test_case {
 	{&file_eloop,   FILE_ELOOP,   ELOOP,        NULL, NULL},
 	{&file_enametoolong, "aaaa...", ENAMETOOLONG, NULL, NULL},
 	{&file_erofs,   FILE_EROFS,   EROFS,        NULL, NULL},
+	{&file_efault,	"Invalid address",  EFAULT,  setup_emem, cleanup_emem},
 };
 
 static void setup(void)