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| author | Soren Brinkmann <soren.brinkmann@xilinx.com> | 2015-01-05 09:21:29 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-01-17 16:06:20 -0800 |
| commit | 19f15a3000a6ede8c3fcd2735225b894002a7cc1 (patch) | |
| tree | 635f2d629508c90e9980c4d3c9b06570587447df /drivers/staging/clocking-wizard | |
| parent | b6461b53e723ec24d57bdd7c23ee6fee4472bee9 (diff) | |
| download | linux-stable-19f15a3000a6ede8c3fcd2735225b894002a7cc1.tar.gz linux-stable-19f15a3000a6ede8c3fcd2735225b894002a7cc1.tar.bz2 linux-stable-19f15a3000a6ede8c3fcd2735225b894002a7cc1.zip | |
staging: clocking-wizard: Handle invalid clk in notifier
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 <fengguang.wu@intel.com>
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/clocking-wizard')
| -rw-r--r-- | drivers/staging/clocking-wizard/clk-xlnx-clock-wizard.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/staging/clocking-wizard/clk-xlnx-clock-wizard.c b/drivers/staging/clocking-wizard/clk-xlnx-clock-wizard.c index 9a7b36937a59..5455bf3d5a91 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: |