rswitch: fix random crashes due to erroneous pointer use#5
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lorc wants to merge 1 commit intorenesas-rcar:v5.10.41/rcar-5.1.7.rc5from
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rswitch: fix random crashes due to erroneous pointer use#5lorc wants to merge 1 commit intorenesas-rcar:v5.10.41/rcar-5.1.7.rc5from
lorc wants to merge 1 commit intorenesas-rcar:v5.10.41/rcar-5.1.7.rc5from
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rswitch_modify() accepts pointer to a MMIO region while rswitch_etha_modify() extracts this pointer from etha structure. So prior to this patch, this code changed memory somewhere in a kernel heap, damaging random kernel structures, which sometimes led to a kernel crash. Signed-off-by: Volodymyr Babchuk <volodymyr_babchuk@epam.com>
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rswitch_modify() accepts pointer to a MMIO region while rswitch_etha_modify() extracts this pointer from etha structure. So prior to this patch, this code changed memory somewhere in a kernel heap, damaging random kernel structures, which sometimes led to a kernel crash.
Signed-off-by: Volodymyr Babchuk volodymyr_babchuk@epam.com