| Message ID | 1420595617-31802-1-git-send-email-andy.shevchenko@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/drivers/media/rc/lirc_dev.c b/drivers/media/rc/lirc_dev.c index 1e0545a..4de0e85 100644 --- a/drivers/media/rc/lirc_dev.c +++ b/drivers/media/rc/lirc_dev.c @@ -553,14 +553,14 @@ unsigned int lirc_dev_fop_poll(struct file *file, poll_table *wait) if (!ir->attached) return POLLERR; - poll_wait(file, &ir->buf->wait_poll, wait); + 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",
We have to check pointer for NULL and then dereference it. Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com> --- drivers/media/rc/lirc_dev.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)