ALSA: ctxfi: Use WARN_ON() instead of BUG_ON()

BUG_ON() is rather useless for debugging as it leads to panic().
Use WARN_ON() and handle the error cases accordingly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 4 insertions, 2 deletions

diff --git a/sound/pci/ctxfi/cthardware.c b/sound/pci/ctxfi/cthardware.c
index 110b8ace6d8a..a689f2552706 100644
--- a/sound/pci/ctxfi/cthardware.c
+++ b/sound/pci/ctxfi/cthardware.c
@@ -69,7 +69,8 @@ unsigned int get_field(unsigned int data, unsigned int field)
 {
         int i;
 
-        BUG_ON(!field);
+        if (WARN_ON(!field))
+                return 0;
         /* @field should always be greater than 0 */
         for (i = 0; !(field & (1 << i)); )
                 i++;
@@ -81,7 +82,8 @@ void set_field(unsigned int *data, unsigned int field, unsigned int value)
 {
         int i;
 
-        BUG_ON(!field);
+        if (WARN_ON(!field))
+                return;
         /* @field should always be greater than 0 */
         for (i = 0; !(field & (1 << i)); )
                 i++;