ALSA: usb-audio: make hwc_debug a noop in case HW_CONST_DEBUG is not set · 60ed286a61 - Gogs

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>

Daniel Mack 14 years ago

parent

23dc05a33f

commit

60ed286a61

1 changed files with 1 additions and 1 deletions

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							+ 1
							
							- 1
						
sound/usb/debug.h
							 
								View File
							
				@@ -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 */