Piteball/android_kernel_google_msm
1
0
Fork 0
mirror of https://github.com/followmsi/android_kernel_google_msm.git synced 2024-11-06 23:17:41 +00:00
Code Issues Projects Releases Wiki Activity

ahci: remove pmp link online check in FBS EH

Browse source 
ata_link_online() check in ahci_error_intr() is unnecessary, it should
be removed otherwise may lead to lockup with FBS enabled PMP.
http://marc.info/?l=linux-ide&m=137050421603272&w=2

Reported-by: Yu Liu <liuyu.ac@gmail.com>
Signed-off-by: Shane Huang <shane.huang@amd.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
This commit is contained in:
Shane Huang 2013-06-08 16:00:16 +08:00 committed by Tejun Heo
parent 5ba59b59cb
commit 912b9ac683
1 changed files with 1 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
drivers/ata/libahci.c
View file

@ -1560,8 +1560,7 @@ static void ahci_error_intr(struct ata_port *ap, u32 irq_stat)
u32 fbs = readl(port_mmio + PORT_FBS); u32 fbs = readl(port_mmio + PORT_FBS);
int pmp = fbs >> PORT_FBS_DWE_OFFSET; int pmp = fbs >> PORT_FBS_DWE_OFFSET;
if ((fbs & PORT_FBS_SDE) && (pmp < ap->nr_pmp_links) && if ((fbs & PORT_FBS_SDE) && (pmp < ap->nr_pmp_links)) {
ata_link_online(&ap->pmp_link[pmp])) {
link = &ap->pmp_link[pmp]; link = &ap->pmp_link[pmp];
fbs_need_dec = true; fbs_need_dec = true;
} }