ManuelW/grbl-LPC-CoreXY
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fixed null pointer dereference in planner_forward_pass_kernel

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jvangrin 2011-07-04 13:05:20 -05:00
parent 67d7607e60
commit 2be3a6cc61
1 changed files with 12 additions and 10 deletions
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2
planner.c
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@ -232,6 +232,7 @@ void planner_reverse_pass() {
// The kernel called by planner_recalculate() when scanning the plan from first to last entry. // The kernel called by planner_recalculate() when scanning the plan from first to last entry.
void planner_forward_pass_kernel(block_t *previous, block_t *current, block_t *next) { void planner_forward_pass_kernel(block_t *previous, block_t *current, block_t *next) {
if(!current) { return; } if(!current) { return; }
if(previous) {
// If the previous block is an acceleration block, but it is not long enough to // If the previous block is an acceleration block, but it is not long enough to
// complete the full speed change within the block, we need to adjust out entry // complete the full speed change within the block, we need to adjust out entry
// speed accordingly. Remember current->entry_factor equals the exit factor of // speed accordingly. Remember current->entry_factor equals the exit factor of
@ -245,6 +246,7 @@ void planner_forward_pass_kernel(block_t *previous, block_t *current, block_t *n
} }
} }
} }
}
// planner_recalculate() needs to go over the current plan twice. Once in reverse and once forward. This // planner_recalculate() needs to go over the current plan twice. Once in reverse and once forward. This
// implements the forward pass. // implements the forward pass.