3.5.7.17 -stable review patch. If anyone has any objections, please let me know.
------------------ From: Shane Huang <[email protected]> commit 912b9ac683b112615d5605686f1dc086402ce9f7 upstream. 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 <[email protected]> Signed-off-by: Shane Huang <[email protected]> Signed-off-by: Tejun Heo <[email protected]> Signed-off-by: Luis Henriques <[email protected]> --- drivers/ata/libahci.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c index f9eaa82..47a1fb8 100644 --- a/drivers/ata/libahci.c +++ b/drivers/ata/libahci.c @@ -1543,8 +1543,7 @@ static void ahci_error_intr(struct ata_port *ap, u32 irq_stat) u32 fbs = readl(port_mmio + PORT_FBS); int pmp = fbs >> PORT_FBS_DWE_OFFSET; - if ((fbs & PORT_FBS_SDE) && (pmp < ap->nr_pmp_links) && - ata_link_online(&ap->pmp_link[pmp])) { + if ((fbs & PORT_FBS_SDE) && (pmp < ap->nr_pmp_links)) { link = &ap->pmp_link[pmp]; fbs_need_dec = true; } -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
