[PATCH] libhal: fix to prevent segmentation faults if call functions with ctx==NULL

[Danny Kukawka]

Hi,

this is a fix to prevent segmentation faults in libhal if a function called 
with parameter LibHalContext *ctx == NULL/0 .

Thanks,

Danny

libhal.c |  327 
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++---
 1 files changed, 316 insertions(+), 11 deletions(-)

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