Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-12-28 05:41:55 +00:00
Code Issues Packages Projects Releases Wiki Activity

ALSA: sb8: Add a comment note regarding an unused pointer

Browse Source 
The field "fm_res" of "struct snd_sb8" is never used/dereferenced
throughout the sb8.c code. Therefore there is no need for any null value
check after the "request_region()".

Add a comment note to make developers know about this and prevent any
"NULL check" patches on this part of code.

Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Atul Gopinathan <atulgopinathan@gmail.com>
Link: https://lore.kernel.org/r/20210503115736.2104747-36-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Atul Gopinathan 2021-05-03 13:57:02 +02:00 committed by Greg Kroah-Hartman
parent 94f88309f2
commit a28591f61b
1 changed files with 5 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
sound/isa/sb/sb8.c
View File

@ -93,7 +93,11 @@ static int snd_sb8_probe(struct device *pdev, unsigned int dev)
acard = card->private_data;
card->private_free = snd_sb8_free;
/* block the 0x388 port to avoid PnP conflicts */
/*
* Block the 0x388 port to avoid PnP conflicts.
* No need to check this value after request_region,
* as we never do anything with it.
*/
acard->fm_res = request_region(0x388, 4, "SoundBlaster FM");
if (port[dev] != SNDRV_AUTO_PORT) {