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crypto: tegra-aes - fix error-valued pointer dereference

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clk_put(dd->aes_clk) will dereference an error-valued pointer since the
dd->aes_clk is a ERR_PTR() value. The correct check is call clk_put()
if !IS_ERR(dd->aes_clk).

dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Wei Yongjun 2012-10-25 22:55:04 +08:00 committed by Herbert Xu
parent 3200da8d9a
commit d48e366e6e
1 changed files with 1 additions and 1 deletions
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2
drivers/crypto/tegra-aes.c
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@ -1035,7 +1035,7 @@ static int tegra_aes_probe(struct platform_device *pdev)
if (dd->buf_out) if (dd->buf_out)
dma_free_coherent(dev, AES_HW_DMA_BUFFER_SIZE_BYTES, dma_free_coherent(dev, AES_HW_DMA_BUFFER_SIZE_BYTES,
dd->buf_out, dd->dma_buf_out); dd->buf_out, dd->dma_buf_out);
if (IS_ERR(dd->aes_clk)) if (!IS_ERR(dd->aes_clk))
clk_put(dd->aes_clk); clk_put(dd->aes_clk);
if (aes_wq) if (aes_wq)
destroy_workqueue(aes_wq); destroy_workqueue(aes_wq);