pNFS: Handle allocation errors correctly in filelayout_alloc_layout_hdr()
Return the NULL pointer when the allocation fails. Reported-by: Fengguang Wu <fengguang.wu@intel.com> Cc: <stable@vger.kernel.org> # 3.5.x Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
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@ -1348,7 +1348,7 @@ filelayout_alloc_layout_hdr(struct inode *inode, gfp_t gfp_flags)
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struct nfs4_filelayout *flo;
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flo = kzalloc(sizeof(*flo), gfp_flags);
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return &flo->generic_hdr;
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return flo != NULL ? &flo->generic_hdr : NULL;
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}
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static void
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