From 92697dc9471b8655a2f1203fa351bc37b2d46a26 Mon Sep 17 00:00:00 2001 From: Tony Battersby Date: Mon, 10 Nov 2014 17:40:02 -0500 Subject: [PATCH] scsi: Fix more error handling in SCSI_IOCTL_SEND_COMMAND Fix an error path in SCSI_IOCTL_SEND_COMMAND that calls blk_put_request(rq) on an invalid IS_ERR(rq) pointer. Fixes: a492f075450f ("block,scsi: fixup blk_get_request dead queue scenarios") Signed-off-by: Tony Battersby Signed-off-by: Jens Axboe --- block/scsi_ioctl.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c index 1e053d911240..b0c2a616c8f9 100644 --- a/block/scsi_ioctl.c +++ b/block/scsi_ioctl.c @@ -458,7 +458,7 @@ int sg_scsi_ioctl(struct request_queue *q, struct gendisk *disk, fmode_t mode, rq = blk_get_request(q, in_len ? WRITE : READ, __GFP_WAIT); if (IS_ERR(rq)) { err = PTR_ERR(rq); - goto error; + goto error_free_buffer; } blk_rq_set_block_pc(rq); @@ -531,9 +531,11 @@ int sg_scsi_ioctl(struct request_queue *q, struct gendisk *disk, fmode_t mode, } error: + blk_put_request(rq); + +error_free_buffer: kfree(buffer); - if (rq) - blk_put_request(rq); + return err; } EXPORT_SYMBOL_GPL(sg_scsi_ioctl); -- 2.20.1