This patch fixes two bugs pointed by James Bottomley:
1. the if (!sym_data->io_reset). That variable is only ever filled
by a stack based completion. If we find it non empty it means
this code has been entered twice and we have a severe problem,
so that should just become a BUG_ON(sym_data->io_reset).
2. sym_data->io_reset should be set to NULL before the routine is
exited otherwise the PCI recovery code could end up completing
what will be a bogus pointer into the stack.
Big thanks to James Bottomley for help with the patch.
Signed-off-by: Krzysztof Helt <krzysztof.h1@w.pl>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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