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Commit ee788d2f authored by edwardkao(153792)'s avatar edwardkao(153792) Committed by Gerrit Code Review
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Merge "ALSA: usb-audio: Fix UAF decrement if card has no live interfaces in... 

Merge "ALSA: usb-audio: Fix UAF decrement if card has no live interfaces in card.c" into 8901-fairphone-p-mp-release
parents 8f1ac4d6 876177b0

sound/usb/card.c

+4 −1
Original line number Diff line number Diff line
@@ -742,9 +742,12 @@ static int usb_audio_probe(struct usb_interface *intf, 


 __error:

	if (chip) {

		/* chip->active is inside the chip->card object,

		 * decrement before memory is possibly returned.

		 */

		atomic_dec(&chip->active);

		if (!chip->num_interfaces)

			snd_card_free(chip->card);

		atomic_dec(&chip->active);

	}

	mutex_unlock(&register_mutex);

	return err;