USB: fix limited_power setting mistake in hub.c
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 <jidong.xiao@gmail.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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@ -2818,9 +2818,9 @@ static void hub_events(void)
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clear_hub_feature(hdev, C_HUB_LOCAL_POWER);
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if (hubstatus & HUB_STATUS_LOCAL_POWER)
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/* FIXME: Is this always true? */
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hub->limited_power = 0;
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else
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hub->limited_power = 1;
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else
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hub->limited_power = 0;
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}
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if (hubchange & HUB_CHANGE_OVERCURRENT) {
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dev_dbg (hub_dev, "overcurrent change\n");
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