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-rw-r--r--lib/test_printf.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/lib/test_printf.c b/lib/test_printf.c
index 5d94cbff2120..030daeb4fe21 100644
--- a/lib/test_printf.c
+++ b/lib/test_printf.c
@@ -594,6 +594,26 @@ flags(void)
}
static void __init
+errptr(void)
+{
+ test("-1234", "%pe", ERR_PTR(-1234));
+
+ /* Check that %pe with a non-ERR_PTR gets treated as ordinary %p. */
+ BUILD_BUG_ON(IS_ERR(PTR));
+ test_hashed("%pe", PTR);
+
+#ifdef CONFIG_SYMBOLIC_ERRNAME
+ test("(-ENOTSOCK)", "(%pe)", ERR_PTR(-ENOTSOCK));
+ test("(-EAGAIN)", "(%pe)", ERR_PTR(-EAGAIN));
+ BUILD_BUG_ON(EAGAIN != EWOULDBLOCK);
+ test("(-EAGAIN)", "(%pe)", ERR_PTR(-EWOULDBLOCK));
+ test("[-EIO ]", "[%-8pe]", ERR_PTR(-EIO));
+ test("[ -EIO]", "[%8pe]", ERR_PTR(-EIO));
+ test("-EPROBE_DEFER", "%pe", ERR_PTR(-EPROBE_DEFER));
+#endif
+}
+
+static void __init
test_pointer(void)
{
plain();
@@ -615,6 +635,7 @@ test_pointer(void)
bitmap();
netdev_features();
flags();
+ errptr();
}
static void __init selftest(void)