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| author | Huang Shijie <sjhuang@iluvatar.ai> | 2021-02-25 17:21:17 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-02-26 09:41:04 -0800 |
| commit | 0e24465d3313832e82f8bd9ee2439da1367dd2e5 (patch) | |
| tree | d720dc613eb5afe1911d9fb446d19d8e096868c7 /lib/genalloc.c | |
| parent | 7b4693e644cbdafdb2a2393fee8f81d85edd1b7d (diff) | |
| download | linux-0e24465d3313832e82f8bd9ee2439da1367dd2e5.tar.gz linux-0e24465d3313832e82f8bd9ee2439da1367dd2e5.tar.bz2 linux-0e24465d3313832e82f8bd9ee2439da1367dd2e5.zip | |
lib/genalloc.c: change return type to unsigned long for bitmap_set_ll
Just as bitmap_clear_ll(), change return type to unsigned long
for bitmap_set_ll to avoid the possible overflow in future.
Link: https://lkml.kernel.org/r/20210105031644.2771-1-sjhuang@iluvatar.ai
Signed-off-by: Huang Shijie <sjhuang@iluvatar.ai>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/genalloc.c')
| -rw-r--r-- | lib/genalloc.c | 3 |
1 files changed, 2 insertions, 1 deletions
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; |