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Groups > linux.kernel > #1328595
| From | Tomas Winkler <tomas.winkler@intel.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [char-misc-next 09/27] mei: amthif: allow only one request at a time |
| Date | 2016-02-07 22:40 +0100 |
| Message-ID | <qZFdM-3BZ-17@gated-at.bofh.it> (permalink) |
| References | <qZFdL-3BZ-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
From: Alexander Usyskin <alexander.usyskin@intel.com> A next amthif write can be executed only after the previous one has completed. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> --- drivers/misc/mei/amthif.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/misc/mei/amthif.c b/drivers/misc/mei/amthif.c index 647edc68884f..4383a9ad9208 100644 --- a/drivers/misc/mei/amthif.c +++ b/drivers/misc/mei/amthif.c @@ -315,6 +315,14 @@ int mei_amthif_write(struct mei_cl *cl, struct mei_cl_cb *cb) dev = cl->dev; list_add_tail(&cb->list, &dev->amthif_cmd_list.list); + + /* + * The previous request is still in processing, queue this one. + */ + if (dev->iamthif_state > MEI_IAMTHIF_IDLE && + dev->iamthif_state < MEI_IAMTHIF_READ_COMPLETE) + return 0; + return mei_amthif_run_next_cmd(dev); } -- 2.4.3
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[char-misc-next 09/27] mei: amthif: allow only one request at a time Tomas Winkler <tomas.winkler@intel.com> - 2016-02-07 22:40 +0100
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