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| author |   Tony Lindgren <tony@atomide.com> | 2019-03-21 11:00:21 -0700 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2019-04-01 07:38:37 -0700 |
| commit | aaa29bb01cc4bf5a87dbdb219efba3b09f259d8e (patch) | |
| tree | 6c272500ee112dfc565e8132ac6d4b5a066e1a91 /drivers/bus | |
| parent | ARM: OMAP2+: Handle reset quirks for dynamically allocated modules (diff) | |
| download | linux-dev-aaa29bb01cc4bf5a87dbdb219efba3b09f259d8e.tar.xz linux-dev-aaa29bb01cc4bf5a87dbdb219efba3b09f259d8e.zip | |
bus: ti-sysc: Fix sysc_unprepare() when no clocks have been allocated
If we return early before ddata->clocks have been allocated we will get a
NULL pointer dereference in sysc_unprepare(). Let's fix this by returning
early when no clocks are allocated.
Fixes: 0eecc636e5a2 ("bus: ti-sysc: Add minimal TI sysc interconnect target driver")
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'drivers/bus')
| -rw-r--r-- | drivers/bus/ti-sysc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c index d299ec79e4c3..647caccacee6 100644 --- a/drivers/bus/ti-sysc.c +++ b/drivers/bus/ti-sysc.c @@ -1331,6 +1331,9 @@ static void sysc_unprepare(struct sysc *ddata) { int i; + if (!ddata->clocks) + return; + for (i = 0; i < SYSC_MAX_CLOCKS; i++) { if (!IS_ERR_OR_NULL(ddata->clocks[i])) clk_unprepare(ddata->clocks[i]); |