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| author | Daniel Mack <zonque@gmail.com> | 2011-05-18 11:28:39 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2011-05-18 11:44:35 +0200 |
| commit | 60ed286a61b43e3fedf18e63f2d71b758f3505aa (patch) | |
| tree | 2ed34a95001e561a3dbb4b331edee677273cb355 /sound | |
| parent | 23dc05a33fd45c1f53b51e6ad9a209bf021a16c8 (diff) | |
| download | lwn-60ed286a61b43e3fedf18e63f2d71b758f3505aa.tar.gz lwn-60ed286a61b43e3fedf18e63f2d71b758f3505aa.zip | |
ALSA: usb-audio: make hwc_debug a noop in case HW_CONST_DEBUG is not set
Just defining it to nothing is dangerous as it can alter the code
execution flow, for example when used in as only function in a
conditional code block.
Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/usb/debug.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/usb/debug.h b/sound/usb/debug.h index 343ec2d9ee66..58030176f008 100644 --- a/sound/usb/debug.h +++ b/sound/usb/debug.h @@ -8,7 +8,7 @@ #ifdef HW_CONST_DEBUG #define hwc_debug(fmt, args...) printk(KERN_DEBUG fmt, ##args) #else -#define hwc_debug(fmt, args...) /**/ +#define hwc_debug(fmt, args...) do { } while(0) #endif #endif /* __USBAUDIO_DEBUG_H */ |