From c0d4d573feed199b16094c072e7cb07afb01c598 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Mon, 29 Jan 2007 21:18:38 -0500 Subject: [PATCH] [PATCH] Fix SG_IO timeout jiffy conversion Commit 85e04e371b5a321b5df2bc3f8e0099a64fb087d7 cleaned up the timeout conversion, but did it exactly the wrong way. We get msecs from user space, and should convert them into jiffies. Not the other way around. Here is a fix with the overflow check sg.c has added in. This fixes DVD burnign with Nero. Signed-off-by: Mike Christie [ "you'll be wanting a comma there" - Andrew ] Cc: Andrew Morton Signed-off-by: Linus Torvalds --- block/scsi_ioctl.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c index 2528a0c0dec8..65c6a3cba6d6 100644 --- a/block/scsi_ioctl.c +++ b/block/scsi_ioctl.c @@ -223,7 +223,7 @@ static int verify_command(struct file *file, unsigned char *cmd) static int sg_io(struct file *file, request_queue_t *q, struct gendisk *bd_disk, struct sg_io_hdr *hdr) { - unsigned long start_time; + unsigned long start_time, timeout; int writing = 0, ret = 0; struct request *rq; char sense[SCSI_SENSE_BUFFERSIZE]; @@ -271,7 +271,8 @@ static int sg_io(struct file *file, request_queue_t *q, rq->cmd_type = REQ_TYPE_BLOCK_PC; - rq->timeout = jiffies_to_msecs(hdr->timeout); + timeout = msecs_to_jiffies(hdr->timeout); + rq->timeout = (timeout < INT_MAX) ? timeout : INT_MAX; if (!rq->timeout) rq->timeout = q->sg_timeout; if (!rq->timeout) -- 2.20.1