[PATCH] uwb: Use kcalloc instead of kzalloc to allocate array

[Thomas Meyer]

The advantage of kcalloc is, that will prevent integer overflows which could
result from the multiplication of number of elements and size and it is also
a bit nicer to read.

The semantic patch that makes this change is available
in https://lkml.org/lkml/2011/11/25/107

Signed-off-by: Thomas Meyer <thomas@xxxxxxxx>
---

diff -u -p a/drivers/uwb/est.c b/drivers/uwb/est.c
--- a/drivers/uwb/est.c 2011-11-13 11:07:53.010573682 +0100
+++ b/drivers/uwb/est.c 2011-11-28 19:50:26.200518093 +0100
@@ -184,7 +184,7 @@ int uwb_est_create(void)
 
 	uwb_est_size = 2;
 	uwb_est_used = 0;
-	uwb_est = kzalloc(uwb_est_size * sizeof(uwb_est[0]), GFP_KERNEL);
+	uwb_est = kcalloc(uwb_est_size, sizeof(uwb_est[0]), GFP_KERNEL);
 	if (uwb_est == NULL)
 		return -ENOMEM;
 
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