We have to check pointer for NULL and then dereference it.
Signed-off-by: Andy Shevchenko <[email protected]>
---
drivers/media/rc/lirc_dev.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
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",
--
1.8.3.101.g727a46b
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