linux/drivers/gpu
Jerome Brunet 12a26c298d clk: divider: fix incorrect usage of container_of
divider_recalc_rate() is an helper function used by clock divider of
different types, so the structure containing the 'hw' pointer is not
always a 'struct clk_divider'

At the following line:
> div = _get_div(table, val, flags, divider->width);

in several cases, the value of 'divider->width' is garbage as the actual
structure behind this memory is not a 'struct clk_divider'

Fortunately, this width value is used by _get_val() only when
CLK_DIVIDER_MAX_AT_ZERO flag is set. This has never been the case so
far when the structure is not a 'struct clk_divider'. This is probably
why we did not notice this bug before

Fixes: afe76c8fd0 ("clk: allow a clk divider with max divisor when zero")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Sylvain Lemieux <slemieux.tyco@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-12-28 15:16:04 -08:00
..
drm clk: divider: fix incorrect usage of container_of 2017-12-28 15:16:04 -08:00
host1x main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
ipu-v3 fixes/cleanups for rc1, non-desktop flags for VR 2017-11-23 21:04:56 -10:00
vga vgaarb: Factor out EFI and fallback default device selection 2017-10-18 10:04:56 +02:00
Makefile