uwb: Use kcalloc instead of kzalloc to allocate array

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@m3y3r.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/uwb/est.c b/drivers/uwb/est.c
index de81ebf51784d086085e12f869dac022946caf0f..86ed7e61e597404e11b6cbc084e63e2ae48b93d7 100644 (file)
--- a/drivers/uwb/est.c
+++ b/drivers/uwb/est.c
@@ -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;