[alsa-devel] [PATCH v2 1/7] ALSA: als100: fix format string overflow warning

[Takashi Iwai]

On Tue, 18 Jul 2017 13:48:04 +0200,
Arnd Bergmann wrote:
> 
> The compiler sees that the format string might overflow for the longname:
> 
> sound/isa/als100.c: In function 'snd_als100_pnp_detect':
> sound/isa/als100.c:225:27: error: ', dma ' directive writing 6 bytes into a region of size between 0 and 64 [-Werror=format-overflow=]
>    sprintf(card->longname, "%s, %s at 0x%lx, irq %d, dma %d",
>                            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> sound/isa/als100.c:225:3: note: 'sprintf' output between 24 and 113 bytes into a destination of size 80
>    sprintf(card->longname, "%s, %s at 0x%lx, irq %d, dma %d",
> 
> Open-coding "shortname" here gets us below the limit, and using
> snprintf() is a good idea too.
> 
> Signed-off-by: Arnd Bergmann <arnd at arndb.de>

Thanks, applied all 7 patches now to for-next branch.


Takashi