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authorIngo Molnar <mingo@kernel.org>2013-10-29 11:23:32 +0100
committerIngo Molnar <mingo@kernel.org>2013-10-29 11:23:32 +0100
commitaac898548d04c7bff179b79f805874b0d6f87571 (patch)
treee8de975fd5de6c95bf4329861a872dbcfe0c7ead /drivers/ata/libahci.c
parent2f5e98802350627ad6f2e3cee4d177059fc0c2f2 (diff)
parentcd65718712469ad844467250e8fad20a5838baae (diff)
Merge branch 'perf/urgent' into perf/core
Conflicts: tools/perf/builtin-record.c tools/perf/builtin-top.c tools/perf/util/hist.h
Diffstat (limited to 'drivers/ata/libahci.c')
-rw-r--r--drivers/ata/libahci.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index acfd0f71106..aaac4fb0d56 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -778,8 +778,16 @@ static void ahci_start_port(struct ata_port *ap)
rc = ap->ops->transmit_led_message(ap,
emp->led_state,
4);
+ /*
+ * If busy, give a breather but do not
+ * release EH ownership by using msleep()
+ * instead of ata_msleep(). EM Transmit
+ * bit is busy for the whole host and
+ * releasing ownership will cause other
+ * ports to fail the same way.
+ */
if (rc == -EBUSY)
- ata_msleep(ap, 1);
+ msleep(1);
else
break;
}