[PATCH 108/142] USB: fix limited_power setting mistake in hub.c

From: jidong xiao <[email protected]>

This patch (jx001) fixes a variable assignment mistake in hub driver.
limited_power should be set to 0 if the hub is self-powered,and 1 if
the hub is bus-powered.

However, the effect of the code was exactly opposite to the spec's
statement for the Local Power Source field. The spec says, this field
is 1 meaning Local power supply lost while this field is 0 indicating
Local power supply good.(This statement is very confusing.)

So this patch switchs the 0 and 1.


Signed-off-by: Jason Xiao <[email protected]>
Acked-by: Alan Stern <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
 drivers/usb/core/hub.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 691acf2..481dca6 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -2818,9 +2818,9 @@ static void hub_events(void)
 				clear_hub_feature(hdev, C_HUB_LOCAL_POWER);
 				if (hubstatus & HUB_STATUS_LOCAL_POWER)
 					/* FIXME: Is this always true? */
-					hub->limited_power = 0;
-				else
 					hub->limited_power = 1;
+				else
+					hub->limited_power = 0;
 			}
 			if (hubchange & HUB_CHANGE_OVERCURRENT) {
 				dev_dbg (hub_dev, "overcurrent change\n");
-- 
1.5.3.4


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