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dahdi-base: Allow reselection of the same clock master

__dahdi_find_master_span is called from a bunch of different places,
like when a span comes on-line, this is to potentially select a new
master.

However the way it's written now, when it's called, it will ALWAYS
tried to find a DIFFERENT master than what is selected now if there
is another available, no matter is the current one is earlier in the
list.

Change-Id: Ibe2365953c5ac7f3dcc7c10526b9eb797ea320ee
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
---
M drivers/dahdi/dahdi-base.c
1 file changed, 0 insertions(+), 2 deletions(-)

git pull ssh://gerrit.osmocom.org:29418/dahdi-linux refs/changes/54/39154/1

diff --git a/drivers/dahdi/dahdi-base.c b/drivers/dahdi/dahdi-base.c
index ef29c4b..43948bd 100644
--- a/drivers/dahdi/dahdi-base.c
+++ b/drivers/dahdi/dahdi-base.c
@@ -3995,8 +3995,6 @@
 			continue;
 		if (!can_provide_timing(s))
 			continue;
-		if (master_span == s)
-			continue;
 
 		master_span = s;
 		break;

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