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authorIngo Molnar <mingo@kernel.org>2016-11-23 07:18:09 +0100
committerIngo Molnar <mingo@kernel.org>2016-11-23 07:18:09 +0100
commit064e6a8ba61a751625478f656c6f76a6f37a009e (patch)
treea22d84d037543f74b6c86969c7e87ab799768de9 /mm/cma.c
parentaf25ed59b5616b389d90877f7085dc5d457a3d49 (diff)
parent23400ac997062647f2b63c82030d189671b1effe (diff)
downloadlinux-064e6a8ba61a751625478f656c6f76a6f37a009e.tar.bz2
Merge branch 'linus' into x86/fpu, to resolve conflicts
Conflicts: arch/x86/kernel/fpu/core.c Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'mm/cma.c')
-rw-r--r--mm/cma.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/cma.c b/mm/cma.c
index 384c2cb51b56..c960459eda7e 100644
--- a/mm/cma.c
+++ b/mm/cma.c
@@ -385,6 +385,9 @@ struct page *cma_alloc(struct cma *cma, size_t count, unsigned int align)
bitmap_maxno = cma_bitmap_maxno(cma);
bitmap_count = cma_bitmap_pages_to_bits(cma, count);
+ if (bitmap_count > bitmap_maxno)
+ return NULL;
+
for (;;) {
mutex_lock(&cma->lock);
bitmap_no = bitmap_find_next_zero_area_off(cma->bitmap,