ALSA: sb8: add a check for request_region
In case request_region fails, the fix returns an error code to avoid NULL pointer dereference. Signed-off-by: Kangjie Lu <kjlu@umn.edu> Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
parent
6ade657d61
commit
dcd0feac9b
@ -111,6 +111,10 @@ static int snd_sb8_probe(struct device *pdev, unsigned int dev)
|
|||||||
|
|
||||||
/* block the 0x388 port to avoid PnP conflicts */
|
/* block the 0x388 port to avoid PnP conflicts */
|
||||||
acard->fm_res = request_region(0x388, 4, "SoundBlaster FM");
|
acard->fm_res = request_region(0x388, 4, "SoundBlaster FM");
|
||||||
|
if (!acard->fm_res) {
|
||||||
|
err = -EBUSY;
|
||||||
|
goto _err;
|
||||||
|
}
|
||||||
|
|
||||||
if (port[dev] != SNDRV_AUTO_PORT) {
|
if (port[dev] != SNDRV_AUTO_PORT) {
|
||||||
if ((err = snd_sbdsp_create(card, port[dev], irq[dev],
|
if ((err = snd_sbdsp_create(card, port[dev], irq[dev],
|
||||||
|
Loading…
Reference in New Issue
Block a user