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* [PATCH] intel tracing: consistency and off-by-one fix
@ 2019-07-24  9:58 Pavel Machek
  0 siblings, 0 replies; only message in thread
From: Pavel Machek @ 2019-07-24  9:58 UTC (permalink / raw)
  To: alexander.shishkin, linux-kernel, Andrew Morton

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Consistently use "< ... +1" in for loops.

Fix of-by-one in for_each_set_bit().

Signed-off-by: Pavel Machek <pavel@denx.de>

diff --git a/drivers/hwtracing/intel_th/gth.c b/drivers/hwtracing/intel_th/gth.c
index fa9d34a..11bc89c 100644
--- a/drivers/hwtracing/intel_th/gth.c
+++ b/drivers/hwtracing/intel_th/gth.c
@@ -543,7 +543,7 @@ static void intel_th_gth_disable(struct intel_th_device *thdev,
 	output->active = false;
 
 	for_each_set_bit(master, gth->output[output->port].master,
-			 TH_CONFIGURABLE_MASTERS) {
+			 TH_CONFIGURABLE_MASTERS + 1) {
 		gth_master_set(gth, master, -1);
 	}
 	spin_unlock(&gth->gth_lock);
@@ -694,7 +694,7 @@ static void intel_th_gth_unassign(struct intel_th_device *thdev,
 	othdev->output.port = -1;
 	othdev->output.active = false;
 	gth->output[port].output = NULL;
-	for (master = 0; master <= TH_CONFIGURABLE_MASTERS; master++)
+	for (master = 0; master < TH_CONFIGURABLE_MASTERS + 1; master++)
 		if (gth->master[master] == port)
 			gth->master[master] = -1;
 	spin_unlock(&gth->gth_lock);

-- 
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2019-07-24  9:58 [PATCH] intel tracing: consistency and off-by-one fix Pavel Machek

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