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Commit 3656cddd authored Jan 06, 2015 by Andy Shevchenko Committed by Mauro Carvalho Chehab Feb 03, 2015

[media] lirc_dev: avoid potential null-dereference



We have to check pointer for NULL and then dereference it.

Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

parent 5ee803a2

drivers/media/rc/lirc_dev.c

+3 −3

Original line number	Diff line number	Diff line
		@@ -553,14 +553,14 @@ unsigned int lirc_dev_fop_poll(struct file file, poll_table wait)
		if (!ir->attached)
		return POLLERR;

		if (ir->buf) {
		poll_wait(file, &ir->buf->wait_poll, wait);

		if (ir->buf)
		if (lirc_buffer_empty(ir->buf))
		ret = 0;
		else
		ret = POLLIN \| POLLRDNORM;
		else
		} else
		ret = POLLERR;

		dev_dbg(ir->d.dev, LOGHEAD "poll result = %d\n",