From: Tyrel Datwyler Date: Thu, 11 Mar 2021 01:22:12 +0000 (-0600) Subject: scsi: ibmvfc: Free channel_setup_buf during device tear down X-Git-Tag: v5.12-rc4~13^2~7 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=febb0cc847e7efd0b2b6cabf9f0e82b13dbadbec;p=thirdparty%2Flinux.git scsi: ibmvfc: Free channel_setup_buf during device tear down The buffer for negotiating channel setup is DMA allocated at device probe time. However, the remove path fails to free this allocation which will prevent the hypervisor from releasing the virtual device in the case of a hotplug remove. Fix this issue by freeing the buffer allocation in ibmvfc_free_mem(). Link: https://lore.kernel.org/r/20210311012212.428068-1-tyreld@linux.ibm.com Fixes: e95eef3fc0bc ("scsi: ibmvfc: Implement channel enquiry and setup commands") Signed-off-by: Tyrel Datwyler Signed-off-by: Martin K. Petersen --- diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index 338e29d3e025f..6a92891ac488d 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -5784,6 +5784,8 @@ static void ibmvfc_free_mem(struct ibmvfc_host *vhost) vhost->disc_buf_dma); dma_free_coherent(vhost->dev, sizeof(*vhost->login_buf), vhost->login_buf, vhost->login_buf_dma); + dma_free_coherent(vhost->dev, sizeof(*vhost->channel_setup_buf), + vhost->channel_setup_buf, vhost->channel_setup_dma); dma_pool_destroy(vhost->sg_pool); ibmvfc_free_queue(vhost, async_q); LEAVE;