From a13b0c9d09157e331b31e25c1ea19216b837a619 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Mon, 19 Jan 2015 16:55:38 +0100 Subject: [PATCH] libata: fixup oops in ata_eh_link_report() We should only try to evaluate the cdb if this is an ATAPI device, for any other device the 'cdb' field and the cdb_len has no meaning. Fixes: cbba5b0ee4c6c2fc8b78a21d0900099d480cf2e9 Reported-by: Sergey Senozhatsky Signed-off-by: Hannes Reinecke Reviewed-by: Tejun Heo Tested-by: Sergey Senozhatsky Signed-off-by: Christoph Hellwig --- drivers/ata/libata-eh.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c index 9179f11..665fd2b 100644 --- a/drivers/ata/libata-eh.c +++ b/drivers/ata/libata-eh.c @@ -2481,8 +2481,6 @@ static void ata_eh_link_report(struct ata_link *link) for (tag = 0; tag < ATA_MAX_QUEUE; tag++) { struct ata_queued_cmd *qc = __ata_qc_from_tag(ap, tag); struct ata_taskfile *cmd = &qc->tf, *res = &qc->result_tf; - const u8 *cdb = qc->cdb; - size_t cdb_len = qc->dev->cdb_len; char data_buf[20] = ""; char cdb_buf[70] = ""; @@ -2510,6 +2508,9 @@ static void ata_eh_link_report(struct ata_link *link) } if (ata_is_atapi(qc->tf.protocol)) { + const u8 *cdb = qc->cdb; + size_t cdb_len = qc->dev->cdb_len; + if (qc->scsicmd) { cdb = qc->scsicmd->cmnd; cdb_len = qc->scsicmd->cmd_len; -- 2.7.4