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03455e79d7
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 38c7cf0e69aeefdec44d513307732e4daf7d9794)