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| author | Kiran Padwal <kiran.padwal@smartplayin.com> | 2014-09-19 12:44:39 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-03-06 14:52:57 -0800 |
| commit | 73da0742175da3f7b2416771037612cdc1ea52f4 (patch) | |
| tree | 857d1b1eaf0fd44a9f2d2ba476de639b1c321986 | |
| parent | 2bce1b5b27c2519b0bf81cf6815ec3267fca0f5a (diff) | |
| download | lwn-73da0742175da3f7b2416771037612cdc1ea52f4.tar.gz lwn-73da0742175da3f7b2416771037612cdc1ea52f4.zip | |
char: tpm: Add missing error check for devm_kzalloc
commit bb95cd34ba4c9467114acc78eeddd53ab1c10085 upstream.
Currently these driver are missing a check on the return value of devm_kzalloc,
which would cause a NULL pointer dereference in a OOM situation.
This patch adds a missing check for tpm_i2c_atmel.c and tpm_i2c_nuvoton.c
Signed-off-by: Kiran Padwal <kiran.padwal@smartplayin.com>
Reviewed-By: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/char/tpm/tpm_i2c_atmel.c | 4 | ||||
| -rw-r--r-- | drivers/char/tpm/tpm_i2c_nuvoton.c | 5 |
2 files changed, 9 insertions, 0 deletions
diff --git a/drivers/char/tpm/tpm_i2c_atmel.c b/drivers/char/tpm/tpm_i2c_atmel.c index 77272925dee6..503a85ae176c 100644 --- a/drivers/char/tpm/tpm_i2c_atmel.c +++ b/drivers/char/tpm/tpm_i2c_atmel.c @@ -168,6 +168,10 @@ static int i2c_atmel_probe(struct i2c_client *client, chip->vendor.priv = devm_kzalloc(dev, sizeof(struct priv_data), GFP_KERNEL); + if (!chip->vendor.priv) { + rc = -ENOMEM; + goto out_err; + } /* Default timeouts */ chip->vendor.timeout_a = msecs_to_jiffies(TPM_I2C_SHORT_TIMEOUT); diff --git a/drivers/char/tpm/tpm_i2c_nuvoton.c b/drivers/char/tpm/tpm_i2c_nuvoton.c index 7b158efd49f7..23c7b137a7fd 100644 --- a/drivers/char/tpm/tpm_i2c_nuvoton.c +++ b/drivers/char/tpm/tpm_i2c_nuvoton.c @@ -538,6 +538,11 @@ static int i2c_nuvoton_probe(struct i2c_client *client, chip->vendor.priv = devm_kzalloc(dev, sizeof(struct priv_data), GFP_KERNEL); + if (!chip->vendor.priv) { + rc = -ENOMEM; + goto out_err; + } + init_waitqueue_head(&chip->vendor.read_queue); init_waitqueue_head(&chip->vendor.int_queue); |