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| author | Vladimir Zapolskiy <vz@mleia.com> | 2016-03-06 04:22:04 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2016-03-11 16:19:20 +0300 |
| commit | b62917a2622ebcb03a500ef20da47be80d8c8951 (patch) | |
| tree | da726d1f461ac632f47177d2a34000c491d0bc9f /drivers/crypto/ux500 | |
| parent | 9b52d55f4f0e2bb9a34abbcf99e05e17f1b3b281 (diff) | |
| download | linux-b62917a2622ebcb03a500ef20da47be80d8c8951.tar.xz | |
crypto: ux500 - fix checks of error code returned by devm_ioremap_resource()
The change fixes potential oops while accessing iomem on invalid
address, if devm_ioremap_resource() fails due to some reason.
The devm_ioremap_resource() function returns ERR_PTR() and never
returns NULL, which makes useless a following check for NULL.
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Fixes: 5a4eea2658c93 ("crypto: ux500 - Use devm_xxx() managed function")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/ux500')
| -rw-r--r-- | drivers/crypto/ux500/cryp/cryp_core.c | 4 | ||||
| -rw-r--r-- | drivers/crypto/ux500/hash/hash_core.c | 4 |
2 files changed, 4 insertions, 4 deletions
diff --git a/drivers/crypto/ux500/cryp/cryp_core.c b/drivers/crypto/ux500/cryp/cryp_core.c index 4c243c1ffc7f..790f7cadc1ed 100644 --- a/drivers/crypto/ux500/cryp/cryp_core.c +++ b/drivers/crypto/ux500/cryp/cryp_core.c @@ -1440,9 +1440,9 @@ static int ux500_cryp_probe(struct platform_device *pdev) device_data->phybase = res->start; device_data->base = devm_ioremap_resource(dev, res); - if (!device_data->base) { + if (IS_ERR(device_data->base)) { dev_err(dev, "[%s]: ioremap failed!", __func__); - ret = -ENOMEM; + ret = PTR_ERR(device_data->base); goto out; } diff --git a/drivers/crypto/ux500/hash/hash_core.c b/drivers/crypto/ux500/hash/hash_core.c index d6fdc583ce5d..574e87c7f2b8 100644 --- a/drivers/crypto/ux500/hash/hash_core.c +++ b/drivers/crypto/ux500/hash/hash_core.c @@ -1659,9 +1659,9 @@ static int ux500_hash_probe(struct platform_device *pdev) device_data->phybase = res->start; device_data->base = devm_ioremap_resource(dev, res); - if (!device_data->base) { + if (IS_ERR(device_data->base)) { dev_err(dev, "%s: ioremap() failed!\n", __func__); - ret = -ENOMEM; + ret = PTR_ERR(device_data->base); goto out; } spin_lock_init(&device_data->ctx_lock); |