Messages in this thread Patch in this message | | | From | Tony Lindgren <> | Subject | [PATCH 01/14] bus: ti-sysc: Fix sysc_unprepare() when no clocks have been allocated | Date | Mon, 25 Mar 2019 14:58:36 -0700 |
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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> --- drivers/bus/ti-sysc.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c --- 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]); -- 2.21.0
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