Messages in this thread Patch in this message | | | From | Zhouyang Jia <> | Subject | [PATCH] gfs2: add error handling for kmem_cache_zalloc | Date | Tue, 12 Jun 2018 11:38:12 +0800 |
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When kmem_cache_zalloc fails, the lack of error-handling code may cause unexpected results.
This patch adds error-handling code after calling kmem_cache_zalloc.
Signed-off-by: Zhouyang Jia <jiazhouyang09@gmail.com> --- fs/gfs2/trans.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/fs/gfs2/trans.c b/fs/gfs2/trans.c index 064c9a0..da81eb4 100644 --- a/fs/gfs2/trans.c +++ b/fs/gfs2/trans.c @@ -130,6 +130,9 @@ static struct gfs2_bufdata *gfs2_alloc_bufdata(struct gfs2_glock *gl, struct gfs2_bufdata *bd; bd = kmem_cache_zalloc(gfs2_bufdata_cachep, GFP_NOFS | __GFP_NOFAIL); + if (!bd) + return NULL; + bd->bd_bh = bh; bd->bd_gl = gl; bd->bd_ops = lops; -- 2.7.4
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