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| author | Tobias Klauser | 2010-03-11 23:08:18 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2010-03-19 15:17:56 +0100 |
| commit | 231443665882a02214c3748b9f86615a3ce9e5c2 (patch) | |
| tree | 46063b96172dc6579fdae2e774ceaff8027d22cb /drivers/serial/cpm_uart | |
| parent | tty_buffer: Fix distinct type warning (diff) | |
| download | kernel-qcow2-linux-231443665882a02214c3748b9f86615a3ce9e5c2.tar.gz kernel-qcow2-linux-231443665882a02214c3748b9f86615a3ce9e5c2.tar.xz kernel-qcow2-linux-231443665882a02214c3748b9f86615a3ce9e5c2.zip | |
tty: cpm_uart: use resource_size()
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>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Kumar Gala <galak@gate.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/serial/cpm_uart')
| -rw-r--r-- | 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 a9802e76b5fa..722eac18f382 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; |