checkpatch: handle missing #if open in context
If the #if opening statement is not in the context then the context stack can be empty. Handle this by ensuring there is always a blank entry in the stack. Signed-off-by: Andy Whitcroft <apw@canonical.com> Tested-by: Dhaval Giani <dhaval@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -411,13 +411,15 @@ sub ctx_statement_block {
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my $type = '';
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my $type = '';
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my $level = 0;
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my $level = 0;
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my @stack = ([$type, $level]);
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my @stack = ();
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my $p;
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my $p;
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my $c;
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my $c;
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my $len = 0;
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my $len = 0;
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my $remainder;
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my $remainder;
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while (1) {
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while (1) {
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@stack = (['', 0]) if ($#stack == -1);
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#warn "CSB: blk<$blk> remain<$remain>\n";
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#warn "CSB: blk<$blk> remain<$remain>\n";
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# If we are about to drop off the end, pull in more
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# If we are about to drop off the end, pull in more
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# context.
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# context.
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