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authorYuriy Kozlov <ykozlov@ptcusa.com>2012-03-29 09:55:27 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-04-09 10:30:39 -0700
commitacede70d6561f2d042d9dbb153d9a3469479c0ed (patch)
tree6a458b7572de459a0c2ab9c82fc93b2ae351820f /drivers/tty/serial/altera_uart.c
parentef37ea34cac19ef46173b26ee47a102f3b987d1e (diff)
downloadop-kernel-dev-acede70d6561f2d042d9dbb153d9a3469479c0ed.zip
op-kernel-dev-acede70d6561f2d042d9dbb153d9a3469479c0ed.tar.gz
tty: serial: altera_uart: Check for NULL platform_data in probe.
Follow altera_jtag_uart. This fixes a crash if there is a mistake in the DTS. Signed-off-by: Yuriy Kozlov <ykozlov@ptcusa.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/altera_uart.c')
-rw-r--r--drivers/tty/serial/altera_uart.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/tty/serial/altera_uart.c b/drivers/tty/serial/altera_uart.c
index e790375..1f03309 100644
--- a/drivers/tty/serial/altera_uart.c
+++ b/drivers/tty/serial/altera_uart.c
@@ -556,7 +556,7 @@ static int __devinit altera_uart_probe(struct platform_device *pdev)
res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (res_mem)
port->mapbase = res_mem->start;
- else if (platp->mapbase)
+ else if (platp)
port->mapbase = platp->mapbase;
else
return -EINVAL;
@@ -564,7 +564,7 @@ static int __devinit altera_uart_probe(struct platform_device *pdev)
res_irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (res_irq)
port->irq = res_irq->start;
- else if (platp->irq)
+ else if (platp)
port->irq = platp->irq;
/* Check platform data first so we can override device node data */
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