[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH] libxl: handle null lists in libxl_string_list_length
After commit b0be2b12 ("libxl: fix libxl_string_list_length and its only caller") libxl_string_list_length no longer handles null (empty) lists. Fix so they are handled, returning length 0. While at it, remove the unneccessary undereferenced null pointer check and tidy the layout of the function. Reported-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx> Signed-off-by: Matthew Daley <mattjd@xxxxxxxxx> --- I've verified that this fixes the no-bootloader-arguments case. tools/libxl/libxl.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/tools/libxl/libxl.c b/tools/libxl/libxl.c index eeaaee8..058bef2 100644 --- a/tools/libxl/libxl.c +++ b/tools/libxl/libxl.c @@ -200,9 +200,12 @@ void libxl_string_list_dispose(libxl_string_list *psl) int libxl_string_list_length(const libxl_string_list *psl) { - if (!psl) return 0; int i = 0; - while ((*psl)[i]) i++; + + if (*psl) + while ((*psl)[i]) + i++; + return i; } -- 1.7.10.4 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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