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| author | Tejun Heo | 2008-04-07 15:47:19 +0200 |
|---|---|---|
| committer | Jeff Garzik | 2008-04-17 21:44:23 +0200 |
| commit | ac371987a81c61c2efbd6931245cdcaf43baad89 (patch) | |
| tree | f88970931b26d2ad344d7d67ddabc64d9b48181d /drivers/ata/libata-eh.c | |
| parent | libata: implement and use sata_std_hardreset() (diff) | |
| download | kernel-qcow2-linux-ac371987a81c61c2efbd6931245cdcaf43baad89.tar.gz kernel-qcow2-linux-ac371987a81c61c2efbd6931245cdcaf43baad89.tar.xz kernel-qcow2-linux-ac371987a81c61c2efbd6931245cdcaf43baad89.zip | |
libata: clear SError after link resume
SError used to be cleared in ->postreset. This has small hotplug race
condition. If a device is plugged in after reset is complete but
postreset hasn't run yet, its hotplug event gets lost when SError is
cleared. This patch makes sata_link_resume() clear SError. This
kills the race condition and makes a lot of sense as some PMP and host
PHYs don't work properly without SError cleared.
This change makes sata_pmp_std_{pre|post}_reset()'s unnecessary as
they become identical to ata_std counterparts. It also simplifies
sata_pmp_hardreset() and ahci_vt8251_hardreset().
Signed-off-by: Tejun Heo <htejun@gmail.com>
Diffstat (limited to 'drivers/ata/libata-eh.c')
0 files changed, 0 insertions, 0 deletions