ALSA: control: remove compilation warning on 32-bit
This was introduced by 'ALSA: control: add support for ENUMERATED user
space controls' which adds a u64 variable that gets cast to a pointer:
sound/core/control.c: In function 'snd_ctl_elem_init_enum_names':
sound/core/control.c:1089: warning: cast to pointer from integer of different size
Cast to uintptr_t before casting to pointer to avoid the warning.
Signed-off-by: Olof Johansson <olof@lixom.net>
[cl: replace long with uintptr_t]
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/core/control.c b/sound/core/control.c
index 978fe1a..59edb12 100644
--- a/sound/core/control.c
+++ b/sound/core/control.c
@@ -1081,12 +1081,12 @@
char *names, *p;
size_t buf_len, name_len;
unsigned int i;
+ const uintptr_t user_ptrval = ue->info.value.enumerated.names_ptr;
if (ue->info.value.enumerated.names_length > 64 * 1024)
return -EINVAL;
- names = memdup_user(
- (const void __user *)ue->info.value.enumerated.names_ptr,
+ names = memdup_user((const void __user *)user_ptrval,
ue->info.value.enumerated.names_length);
if (IS_ERR(names))
return PTR_ERR(names);
