mfd: wm8350 tries reaches -1

With a postfix decrement tries will reach -1 rather than 0,
so the warning will not be issued even upon timeout.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/mfd/wm8350-core.c b/drivers/mfd/wm8350-core.c
index e5e82c7cc523..ea3801833176 100644
--- a/drivers/mfd/wm8350-core.c
+++ b/drivers/mfd/wm8350-core.c
@@ -1111,7 +1111,7 @@ int wm8350_read_auxadc(struct wm8350 *wm8350, int channel, int scale, int vref)
         do {
                 schedule_timeout_interruptible(1);
                 reg = wm8350_reg_read(wm8350, WM8350_DIGITISER_CONTROL_1);
-        } while (tries-- && (reg & WM8350_AUXADC_POLL));
+        } while (--tries && (reg & WM8350_AUXADC_POLL));
 
         if (!tries)
                 dev_err(wm8350->dev, "adc chn %d read timeout\n", channel);