Messages in this thread Patch in this message | | | From | Tobias Klauser <> | Subject | [PATCH] cpm_uart: Use resource_size() | Date | Wed, 17 Feb 2010 09:00:36 +0100 |
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Use the resource_size function instead of manually calculating the resource size. This reduces the chance of introducing off-by-one errors.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch> --- drivers/serial/cpm_uart/cpm_uart_cpm2.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm2.c b/drivers/serial/cpm_uart/cpm_uart_cpm2.c index a9802e7..722eac1 100644 --- a/drivers/serial/cpm_uart/cpm_uart_cpm2.c +++ b/drivers/serial/cpm_uart/cpm_uart_cpm2.c @@ -61,7 +61,7 @@ void __iomem *cpm_uart_map_pram(struct uart_cpm_port *port, void __iomem *pram; unsigned long offset; struct resource res; - unsigned long len; + resource_size_t len; /* Don't remap parameter RAM if it has already been initialized * during console setup. @@ -74,7 +74,7 @@ void __iomem *cpm_uart_map_pram(struct uart_cpm_port *port, if (of_address_to_resource(np, 1, &res)) return NULL; - len = 1 + res.end - res.start; + len = resource_size(&res); pram = ioremap(res.start, len); if (!pram) return NULL; -- 1.6.3.3
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