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Commit 61a6a108 authored by Thomas Pfaff's avatar Thomas Pfaff Committed by Takashi Iwai
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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: default avatarThomas Pfaff <tpfaff@gmx.net>
Cc: <stable@kernel.org> [2.6.39+]
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent e0d32e33

sound/usb/card.c

+5 −3
Original line number Original line Diff line number Diff line
@@ -530,9 +530,11 @@ snd_usb_audio_probe(struct usb_device *dev, 
	return chip;

	return chip;





 __error:

 __error:

	if (chip && !chip->num_interfaces)

	if (chip) {

		if (!chip->num_interfaces)

			snd_card_free(chip->card);

			snd_card_free(chip->card);

		chip->probing = 0;

		chip->probing = 0;

	}

	mutex_unlock(&register_mutex);

	mutex_unlock(&register_mutex);

 __err_val:

 __err_val:

	return NULL;

	return NULL;