diff options
Diffstat (limited to 'drivers/mfd/wm831x-core.c')
| -rw-r--r-- | drivers/mfd/wm831x-core.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/mfd/wm831x-core.c b/drivers/mfd/wm831x-core.c index 07101e9..f2ab025 100644 --- a/drivers/mfd/wm831x-core.c +++ b/drivers/mfd/wm831x-core.c @@ -18,6 +18,7 @@ #include <linux/bcd.h> #include <linux/delay.h> #include <linux/mfd/core.h> +#include <linux/slab.h> #include <linux/mfd/wm831x/core.h> #include <linux/mfd/wm831x/pdata.h> @@ -348,6 +349,9 @@ int wm831x_auxadc_read(struct wm831x *wm831x, enum wm831x_auxadc input) goto disable; } + /* If an interrupt arrived late clean up after it */ + try_wait_for_completion(&wm831x->auxadc_done); + /* Ignore the result to allow us to soldier on without IRQ hookup */ wait_for_completion_timeout(&wm831x->auxadc_done, msecs_to_jiffies(5)); |