Even though it should never happen, handle the case that the clock
notifier is called with an unexpected clock handle. This avoids the
compiler warning:
drivers/staging/clocking-wizard/clk-xlnx-clock-wizard.c: In function
'clk_wzrd_clk_notifier':
>> drivers/staging/clocking-wizard/clk-xlnx-clock-wizard.c:99:6: warning: 'max'
>> may be used uninitialized in this function [-Wmaybe-uninitialized]
if (ndata->new_rate > max)
^
Reported-by: kbuild test robot <[email protected]>
Signed-off-by: Soren Brinkmann <[email protected]>
---
drivers/staging/clocking-wizard/clk-xlnx-clock-wizard.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/clocking-wizard/clk-xlnx-clock-wizard.c
b/drivers/staging/clocking-wizard/clk-xlnx-clock-wizard.c
index 471d0877f382..048247fa9e34 100644
--- a/drivers/staging/clocking-wizard/clk-xlnx-clock-wizard.c
+++ b/drivers/staging/clocking-wizard/clk-xlnx-clock-wizard.c
@@ -91,8 +91,10 @@ static int clk_wzrd_clk_notifier(struct notifier_block *nb,
unsigned long event,
if (ndata->clk == clk_wzrd->clk_in1)
max = clk_wzrd_max_freq[clk_wzrd->speed_grade - 1];
- if (ndata->clk == clk_wzrd->axi_clk)
+ else if (ndata->clk == clk_wzrd->axi_clk)
max = WZRD_ACLK_MAX_FREQ;
+ else
+ return NOTIFY_DONE; /* should never happen */
switch (event) {
case PRE_RATE_CHANGE:
--
2.2.1.1.gb42cc81
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