Messages in this thread Patch in this message | | | From | Huang Shijie <> | Subject | [PATCH] lib/genalloc: change return type to unsigned long for bitmap_set_ll | Date | Tue, 5 Jan 2021 11:16:44 +0800 |
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Just as bitmap_clear_ll(), change return type to unsigned long for bitmap_set_ll to avoid the possible overflow in future.
Signed-off-by: Huang Shijie <sjhuang@iluvatar.ai> --- This patch is not a bug fix. I missed to change it in previous patch.
--- lib/genalloc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/lib/genalloc.c b/lib/genalloc.c index dab97bb69df6..5dcf9cdcbc46 100644 --- a/lib/genalloc.c +++ b/lib/genalloc.c @@ -81,7 +81,8 @@ static int clear_bits_ll(unsigned long *addr, unsigned long mask_to_clear) * users set the same bit, one user will return remain bits, otherwise * return 0. */ -static int bitmap_set_ll(unsigned long *map, unsigned long start, unsigned long nr) +static unsigned long +bitmap_set_ll(unsigned long *map, unsigned long start, unsigned long nr) { unsigned long *p = map + BIT_WORD(start); const unsigned long size = start + nr; -- 2.17.1
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