clk: sunxi: Prevent out-of-bounds gate array access

Because the gate arrays are not given explicit sizes, the arrays are
only as large as the highest-numbered gate described in the driver.
However, only a subset of the CCU clocks are needed by U-Boot. So there
are valid clock specifiers with indexes greater than the size of the
arrays. Referencing any of these clocks causes out-of-bounds access.
Fix this by checking the identifier against the size of the array.

Fixes: 0d47bc705651 ("clk: Add Allwinner A64 CLK driver")
Signed-off-by: Samuel Holland <[email protected]>
Reviewed-by: Andre Przywara <[email protected]>
Signed-off-by: Andre Przywara <[email protected]>

0 files changed, 0 insertions, 0 deletions