diff options
author | Martin Blumenstingl <martin.blumenstingl@googlemail.com> | 2019-06-18 23:39:27 +0300 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2019-06-20 00:40:49 +0300 |
commit | 84ce4d0f9f55b4f4ca4d4edcbb54a23d9dad1aae (patch) | |
tree | 799526c7d6ed8338c67c2fa2b4cb5c58c3f785c8 /crypto | |
parent | 22f1a38a547b5ce5e73b0a77339cbf23f70dee5d (diff) | |
download | linux-84ce4d0f9f55b4f4ca4d4edcbb54a23d9dad1aae.tar.xz |
net: stmmac: initialize the reset delay array
Commit ce4ab73ab0c27c ("net: stmmac: drop the reset delays from struct
stmmac_mdio_bus_data") moved the reset delay array from struct
stmmac_mdio_bus_data to a stack variable.
The values from the array inside struct stmmac_mdio_bus_data were
previously initialized to 0 because the struct was allocated using
devm_kzalloc(). The array on the stack has to be initialized
explicitly, else we might be reading garbage values.
Initialize all reset delays to 0 to ensure that the values are 0 if the
"snps,reset-delays-us" property is not defined.
This fixes booting at least two boards (MIPS pistachio marduk and ARM
sun8i H2+ Orange Pi Zero). These are hanging during boot when
initializing the stmmac Ethernet controller (as found by Kernel CI).
Both have in common that they don't define the "snps,reset-delays-us"
property.
Fixes: ce4ab73ab0c27c ("net: stmmac: drop the reset delays from struct stmmac_mdio_bus_data")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reported-by: "kernelci.org bot" <bot@kernelci.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'crypto')
0 files changed, 0 insertions, 0 deletions