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Currently kernel crashes when of_phy_connect has issues:
Unable to handle kernel access to user memory outside uaccess routines at virtual address 0000000000000308
...
pc : phy_attached_print+0x28/0x1b0
lr : phy_attached_info+0x14/0x20
...
Call trace:
phy_attached_print+0x28/0x1b0
phy_attached_info+0x14/0x20
nss_dp_adjust_link+0x544/0x6c4 [qca_nss_dp]
of_phy_connect returns either pointer or NULL, so can't be checked with
IS_ERR macro.
Signed-off-by: Petr Štetiar <ynezz@true.cz>
(cherry picked from commit
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