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| author | Tiejun Chen <tiejun.chen@windriver.com> | 2012-01-11 05:51:10 +0000 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2012-01-20 16:54:35 +0000 |
| commit | b469d4329cf949043f9b93a6644f2c64015ef8cd (patch) | |
| tree | 908bb5053e9f5033086050a3d3da9b18ce0ef632 /mm/kmemleak.c | |
| parent | dcd6c92267155e70a94b3927bce681ce74b80d1f (diff) | |
| download | lwn-b469d4329cf949043f9b93a6644f2c64015ef8cd.tar.gz lwn-b469d4329cf949043f9b93a6644f2c64015ef8cd.zip | |
kmemleak: Only scan non-zero-size areas
Kmemleak should only track valid scan areas with a non-zero size.
Otherwise, such area may reside just at the end of an object and
kmemleak would report "Adding scan area to unknown object".
Signed-off-by: Tiejun Chen <tiejun.chen@windriver.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'mm/kmemleak.c')
| -rw-r--r-- | mm/kmemleak.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/kmemleak.c b/mm/kmemleak.c index c833addd94d7..f9f7310f0fdb 100644 --- a/mm/kmemleak.c +++ b/mm/kmemleak.c @@ -1036,7 +1036,7 @@ void __ref kmemleak_scan_area(const void *ptr, size_t size, gfp_t gfp) { pr_debug("%s(0x%p)\n", __func__, ptr); - if (atomic_read(&kmemleak_enabled) && ptr && !IS_ERR(ptr)) + if (atomic_read(&kmemleak_enabled) && ptr && size && !IS_ERR(ptr)) add_scan_area((unsigned long)ptr, size, gfp); else if (atomic_read(&kmemleak_early_log)) log_early(KMEMLEAK_SCAN_AREA, ptr, size, 0); |