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crypto: s5p-sss - Add error handling in s5p_aes_probe()

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commit a472cc0dde upstream.

The function s5p_aes_probe() does not perform sufficient error
checking after executing platform_get_resource(), thus fix it.

Fixes: c2afad6c61 ("crypto: s5p-sss - Add HASH support for Exynos")
Cc: <stable@vger.kernel.org>
Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tang Bin 2021-10-21 09:34:22 +08:00 committed by Greg Kroah-Hartman
parent 9ac25cd2f4
commit 949c5b6daa
1 changed files with 2 additions and 0 deletions
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2
drivers/crypto/s5p-sss.c
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@ -2173,6 +2173,8 @@ static int s5p_aes_probe(struct platform_device *pdev)
variant = find_s5p_sss_version(pdev); variant = find_s5p_sss_version(pdev);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0); res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -EINVAL;
/* /*
* Note: HASH and PRNG uses the same registers in secss, avoid * Note: HASH and PRNG uses the same registers in secss, avoid