[PATCH v2 1/2] ALSA: hda/ca0132: Fix using plain integer as NULL pointer in add_tuning_control

[Lucy Thrun <lucy.thrun@digital-rabbithole.de>]

The 'add_tuning_control' function initializes two pointers using the integer 0 instead of the NULL pointer, triggering sparse warnings.
Replaced both instaces of '0' with 'NULL' to resolve the type mismatch and suppress the sparse warnings.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202506100842.d8lwwdwU-lkp@intel.com/

Signed-off-by: Lucy Thrun <lucy.thrun@digital-rabbithole.de>
---
 sound/pci/hda/patch_ca0132.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/pci/hda/patch_ca0132.c b/sound/pci/hda/patch_ca0132.c
index cfe422a79703..491d45d652dd 100644
--- a/sound/pci/hda/patch_ca0132.c
+++ b/sound/pci/hda/patch_ca0132.c
@@ -4385,8 +4385,8 @@ static int add_tuning_control(struct hda_codec *codec,
 
 	knew.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
 			SNDRV_CTL_ELEM_ACCESS_TLV_READ;
-	knew.tlv.c = 0;
-	knew.tlv.p = 0;
+	knew.tlv.c = NULL;
+	knew.tlv.p = NULL;
 	switch (pnid) {
 	case VOICE_FOCUS:
 		knew.info = voice_focus_ctl_info;
-- 
2.45.1.windows.1