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| author | Jesper Juhl <jj@chaosbits.net> | 2011-01-13 15:47:22 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-13 17:32:48 -0800 |
| commit | 32d6feadf4e17ea9b98071be9bbf402a74a4f818 (patch) | |
| tree | 62427ca91992c87399211fec6294533fac0e7464 /mm/mmap.c | |
| parent | 29c1f677d424e8c5683a837fc4f03fc9f19201d7 (diff) | |
| download | lwn-32d6feadf4e17ea9b98071be9bbf402a74a4f818.tar.gz lwn-32d6feadf4e17ea9b98071be9bbf402a74a4f818.zip | |
mm/hugetlb.c: fix error-path memory leak in nr_hugepages_store_common()
The NODEMASK_ALLOC macro may dynamically allocate memory for its second
argument ('nodes_allowed' in this context).
In nr_hugepages_store_common() we may abort early if strict_strtoul()
fails, but in that case we do not free the memory already allocated to
'nodes_allowed', causing a memory leak.
This patch closes the leak by freeing the memory in the error path.
[akpm@linux-foundation.org: use NODEMASK_FREE, per Minchan Kim]
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Cc: Minchan Kim <minchan.kim@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/mmap.c')
0 files changed, 0 insertions, 0 deletions