ALSA: hda/ca0132: Fix using plain integer as NULL pointer in add_tuning_control

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>
Link: https://patch.msgid.link/20250610175012.918-2-lucy.thrun@digital-rabbithole.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/hda/patch_ca0132.c b/sound/pci/hda/patch_ca0132.c
index cfe422a797033c949b31935c61c24e1e91ece3fe..491d45d652dd0e7fa5d1f44cb064873925c35475 100644 (file)
--- 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;