net: ethernet: broadcom: Remove null check before kfree

Kfree on NULL pointer is a no-op and therefore checking is redundant.
Signed-off-by: Himanshu Jha <himanshujha199640@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/broadcom/sb1250-mac.c

@@ -1367,15 +1367,11 @@ static int sbmac_initctx(struct sbmac_softc *s)
 
 static void sbdma_uninitctx(struct sbmacdma *d)
 {
-	if (d->sbdma_dscrtable_unaligned) {
 	kfree(d->sbdma_dscrtable_unaligned);
 	d->sbdma_dscrtable_unaligned = d->sbdma_dscrtable = NULL;
-	}
 
-	if (d->sbdma_ctxtable) {
 	kfree(d->sbdma_ctxtable);
 	d->sbdma_ctxtable = NULL;
-	}
 }