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(parent: b18a183) | patch
tty: amba-pl011: don't dereference NULL platform data
authorRobin Murphy <robin.murphy@arm.com>
Thu, 3 Mar 2016 16:35:35 +0000 (16:35 +0000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 8 Mar 2016 00:11:14 +0000 (16:11 -0800)
commitd9e105ca601e58feec65cdcef86d9c5748b7e5bb
tree93fb2a76912190cf0d8ac90bd3e4eedcdcde0f58tree | snapshot
parentb18a183eaac25bd8dc51eab85437c7253f5c31d1commit | diff
tty: amba-pl011: don't dereference NULL platform data

When only a TX DMA channel is specified in DT, pl011_dma_probe() falls
back to looking for the optional RX channel in platform data. What it
doesn't do is check whether that platform data actually exists...

Add the missing check to avoid crashing the kernel.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/serial/amba-pl011.c diff | blob | blame | history
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