[lvc-project] [PATCH v2] ssb: Fix division by zero issue in ssb_calc_clock_rate

[Rand Deeb]

In ssb_calc_clock_rate(), there is a potential issue where the value of
m1 could be zero due to initialization using clkfactor_f6_resolv(). This
situation raised concerns about the possibility of a division by zero
error.

We fixed it by following the suggestions provided by Larry Finger
<Larry.Finger at lwfinger.net> and Michael Büsch <m at bues.ch>. The fix
involves returning a value of 1 instead of 0 in clkfactor_f6_resolv().
This modification ensures the proper functioning of the code and
eliminates the risk of division by zero errors.

Signed-off-by: Rand Deeb <rand.sec96 at gmail.com>
---
 drivers/ssb/main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c
index 0a26984acb2c..9e54bc7eec66 100644
--- a/drivers/ssb/main.c
+++ b/drivers/ssb/main.c
@@ -835,7 +835,7 @@ static u32 clkfactor_f6_resolve(u32 v)
 	case SSB_CHIPCO_CLK_F6_7:
 		return 7;
 	}
-	return 0;
+	return 1;
 }
 
 /* Calculate the speed the backplane would run at a given set of clockcontrol values */
-- 
2.34.1