This is a note to let you know that I've just added the patch titled
char: tpm: Add missing error check for devm_kzalloc
to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
char-tpm-add-missing-error-check-for-devm_kzalloc.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From bb95cd34ba4c9467114acc78eeddd53ab1c10085 Mon Sep 17 00:00:00 2001
From: Kiran Padwal <[email protected]>
Date: Fri, 19 Sep 2014 12:44:39 +0530
Subject: char: tpm: Add missing error check for devm_kzalloc
From: Kiran Padwal <[email protected]>
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 <[email protected]>
Reviewed-By: Jason Gunthorpe <[email protected]>
Signed-off-by: Peter Huewe <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/char/tpm/tpm_i2c_atmel.c | 4 ++++
drivers/char/tpm/tpm_i2c_nuvoton.c | 5 +++++
2 files changed, 9 insertions(+)
--- 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_cl
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);
--- 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_
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);
Patches currently in stable-queue which might be from
[email protected] are
queue-3.14/char-tpm-add-missing-error-check-for-devm_kzalloc.patch
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