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| author | Thomas Pfaff <tpfaff@gmx.net> | 2011-09-26 15:43:59 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2011-09-26 15:48:47 +0200 |
| commit | 61a6a108d15213f5ee06332e1e7766d3860e4453 (patch) | |
| tree | 6ffc2d8dbe6d7c80109f3e316e7a11da0e4c926b | |
| parent | e0d32e335fc0e354db93a807736243f5035fbc67 (diff) | |
| download | lwn-61a6a108d15213f5ee06332e1e7766d3860e4453.tar.gz lwn-61a6a108d15213f5ee06332e1e7766d3860e4453.zip | |
ALSA: usb-audio: Check for possible chip NULL pointer before clearing probing flag
Before clearing the probing flag in the error exit path, check that the
chip pointer is not NULL.
Signed-off-by: Thomas Pfaff <tpfaff@gmx.net>
Cc: <stable@kernel.org> [2.6.39+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
| -rw-r--r-- | sound/usb/card.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/sound/usb/card.c b/sound/usb/card.c index ed120ca2353d..d8f2bf401458 100644 --- a/sound/usb/card.c +++ b/sound/usb/card.c @@ -530,9 +530,11 @@ snd_usb_audio_probe(struct usb_device *dev, return chip; __error: - if (chip && !chip->num_interfaces) - snd_card_free(chip->card); - chip->probing = 0; + if (chip) { + if (!chip->num_interfaces) + snd_card_free(chip->card); + chip->probing = 0; + } mutex_unlock(®ister_mutex); __err_val: return NULL; |