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author | Jon Hunter <jonathanh@nvidia.com> | 2016-10-22 20:23:52 +0100 |
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committer | Thierry Reding <treding@nvidia.com> | 2016-11-15 15:51:52 +0100 |
commit | f4392d6da5f52727a53298321f4dfeac6df1a093 (patch) | |
tree | abdb54e436b6687280574d9b9cfebb5130cfc39e /.gitignore | |
parent | 21b4991051780b49b217c363f79366ed94c3b4b7 (diff) | |
download | linux-f4392d6da5f52727a53298321f4dfeac6df1a093.tar.bz2 |
soc/tegra: pmc: Guard against uninitialised PMC clock
It is possible for the public functions, tegra_io_rail_power_on/off()
to be called before the PMC device has been probed. If this happens
then the pmc->clk member will not be initialised and the call to
clk_get_rate() in tegra_io_rail_prepare() will return zero and lead
to a divide-by-zero exception. The function clk_get_rate() will return
zero if a NULl clk pointer is passed. Therefore, rather that checking
if pmc->clk is initialised, fix this by checking the return value for
clk_get_rate() to make sure it is not zero.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to '.gitignore')
0 files changed, 0 insertions, 0 deletions