Messages in this thread | | | Date | Fri, 08 Mar 2013 12:11:36 -0600 | From | Larry Finger <> | Subject | Question about checking a pointer for validity |
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I am chasing what I suspect is a firmware error for the Realtek RTL8723AE device. The symptom is that the RX buffer is corrupted, and I get a kernel panic due to a bad pointer in an interrupt routine.
I am currently checking that pointer for NULL, which is catching some of the situations, but I am still getting panics from non-NULL pointers that do not point to a valid address.
Is there any way to test a pointer for validity that will not crash the system if it is bad?
Thanks,
Larry
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