linux-kernel - [PATCH 4.20 048/145] staging: bcm2835-audio: double free in init error path

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Date:   Mon,  7 Jan 2019 13:31:25 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Dan Carpenter <dan.carpenter@...cle.com>,
        Takashi Iwai <tiwai@...e.de>
Subject: [PATCH 4.20 048/145] staging: bcm2835-audio: double free in init error path

4.20-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dan Carpenter <dan.carpenter@...cle.com>

commit 649496b603000135683ee76d7ea499456617bf17 upstream.

We free instance here and in the caller.  It should be only the caller
which handles it.

Fixes: d7ca3a71545b ("staging: bcm2835-audio: Operate non-atomic PCM ops")
Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
Reviewed-by: Takashi Iwai <tiwai@...e.de>
Cc: stable <stable@...r.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c |    1 -
 1 file changed, 1 deletion(-)

--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c
+++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c
@@ -143,7 +143,6 @@ vc_vchi_audio_init(VCHI_INSTANCE_T vchi_
 		dev_err(instance->dev,
 			"failed to open VCHI service connection (status=%d)\n",
 			status);
-		kfree(instance);
 		return -EPERM;
 	}