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authorRob Herring <robh@kernel.org>2017-03-22 09:16:27 -0500
committerRob Herring <robh@kernel.org>2017-03-22 14:56:13 -0500
commit0634c2958927198797bf9e55d26fb51cce4c22b4 (patch)
treee517e4931cce3cec6323e08355d53a97b8de66b3 /drivers/tty
parentbcf54d5385abaea9c8026aae6f4eeb348671a52d (diff)
downloadop-kernel-dev-0634c2958927198797bf9e55d26fb51cce4c22b4.zip
op-kernel-dev-0634c2958927198797bf9e55d26fb51cce4c22b4.tar.gz
of: Add function for generating a DT modalias with a newline
The modalias sysfs attr is lacking a newline for DT aliases on platform devices. The macio and ibmebus correctly add the newline, but open code it. Introduce a new function, of_device_modalias(), that fills the buffer with the modalias including the newline and update users of the old of_device_get_modalias function. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Frank Rowand <frowand.list@gmail.com> Cc: linuxppc-dev@lists.ozlabs.org Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
-rw-r--r--drivers/tty/serdev/core.c5
1 files changed, 1 insertions, 4 deletions
diff --git a/drivers/tty/serdev/core.c b/drivers/tty/serdev/core.c
index f4c6c90..531aa89 100644
--- a/drivers/tty/serdev/core.c
+++ b/drivers/tty/serdev/core.c
@@ -191,10 +191,7 @@ static int serdev_drv_remove(struct device *dev)
static ssize_t modalias_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
- ssize_t len = of_device_get_modalias(dev, buf, PAGE_SIZE - 2);
- buf[len] = '\n';
- buf[len+1] = 0;
- return len+1;
+ return of_device_modalias(dev, buf, PAGE_SIZE);
}
static struct device_attribute serdev_device_attrs[] = {
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