'len' in of_dma_get_range() is used to check the 'dma-ranges' property length. After the fact, some calculations are run on the variable to be then left unused.
Signed-off-by: Nicolas Saenz Julienne nsaenzjulienne@suse.de ---
drivers/of/address.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/of/address.c b/drivers/of/address.c index 978427a9d5e6..0f898756199d 100644 --- a/drivers/of/address.c +++ b/drivers/of/address.c @@ -922,7 +922,7 @@ int of_dma_get_range(struct device_node *np, u64 *dma_addr, u64 *paddr, u64 *siz { struct device_node *node = of_node_get(np); const __be32 *ranges = NULL; - int len, naddr, nsize, pna; + int naddr, nsize, pna; int ret = 0; u64 dmaaddr;
@@ -931,6 +931,7 @@ int of_dma_get_range(struct device_node *np, u64 *dma_addr, u64 *paddr, u64 *siz
while (1) { struct device_node *parent; + int len;
naddr = of_n_addr_cells(node); nsize = of_n_size_cells(node); @@ -962,8 +963,6 @@ int of_dma_get_range(struct device_node *np, u64 *dma_addr, u64 *paddr, u64 *siz goto out; }
- len /= sizeof(u32); - pna = of_n_addr_cells(node);
/* dma-ranges format: