[U-Boot] [PATCH] ubifsmount fails due to not initialized list

[Stefano Babic <sbabic@denx.de>]

Quotient Remainder wrote:

> Out of interest, how did something like this get away with only causing
> an occasional failure?

Well, there are some explanations. MMU is normally off and a Null
Pointer does not cause an exception in u-boot. If we get a failure, it
depends on the architecture we are using. On PowerPC, address 0 is
accessible and then we get no failure. In this particular case
(ubifsmount), the list is set but not used by the calling function.
Because writing to address 0 is allowed, the bug is not noticeable.

Different is on arm, where I have found the problem. Because in this
case address 0 is not accessible at all, u-boot hangs and it is not
possible to avoid to see that we have a problem....

Best regards,
Stefano Babic

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