From: Jeff Dike Date: Sat, 10 Feb 2007 09:43:59 +0000 (-0800) Subject: [PATCH] uml: audio driver locking X-Git-Tag: v2.6.21-rc1~91^2~430 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b612e475e75f860002d88dd8440ce250506c5094;p=platform%2Fkernel%2Flinux-stable.git [PATCH] uml: audio driver locking Comment the lack of locking and make a couple of variables static. Signed-off-by: Jeff Dike Cc: Paolo 'Blaisorblade' Giarrusso Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/arch/um/drivers/hostaudio_kern.c b/arch/um/drivers/hostaudio_kern.c index a0d148ea..f61fa05 100644 --- a/arch/um/drivers/hostaudio_kern.c +++ b/arch/um/drivers/hostaudio_kern.c @@ -25,9 +25,12 @@ struct hostmixer_state { #define HOSTAUDIO_DEV_DSP "/dev/sound/dsp" #define HOSTAUDIO_DEV_MIXER "/dev/sound/mixer" -/* Only changed from linux_main at boot time */ -char *dsp = HOSTAUDIO_DEV_DSP; -char *mixer = HOSTAUDIO_DEV_MIXER; +/* Changed either at boot time or module load time. At boot, this is + * single-threaded; at module load, multiple modules would each have + * their own copy of these variables. + */ +static char *dsp = HOSTAUDIO_DEV_DSP; +static char *mixer = HOSTAUDIO_DEV_MIXER; #define DSP_HELP \ " This is used to specify the host dsp device to the hostaudio driver.\n" \