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| author | Jiasheng Jiang <jiasheng@iscas.ac.cn> | 2022-01-26 04:48:53 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-08 15:23:05 +0300 |
| commit | 9ada174f47b31f7c9b24c0da55b2b649aec7fafb (patch) | |
| tree | 74295e2c3fd2dedc3e0fbc1cf28db5d4f9ceade2 /drivers/thermal | |
| parent | 486d4c18f207eef95459f3258238eab418c3c4e9 (diff) | |
| download | linux-9ada174f47b31f7c9b24c0da55b2b649aec7fafb.tar.xz | |
thermal: int340x: Check for NULL after calling kmemdup()
[ Upstream commit 38b16d6cfe54c820848bcfc999bc5e8a7da1cefb ]
As the potential failure of the allocation, kmemdup() may return NULL.
Then, 'bin_attr_data_vault.private' will be NULL, but
'bin_attr_data_vault.size' is not 0, which is not consistent.
Therefore, it is better to check the return value of kmemdup() to
avoid the confusion.
Fixes: 0ba13c763aac ("thermal/int340x_thermal: Export GDDV")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/thermal')
| -rw-r--r-- | drivers/thermal/intel/int340x_thermal/int3400_thermal.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c index ff8deabbdfda..c8cdc614a357 100644 --- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c +++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c @@ -469,6 +469,11 @@ static void int3400_setup_gddv(struct int3400_thermal_priv *priv) priv->data_vault = kmemdup(obj->package.elements[0].buffer.pointer, obj->package.elements[0].buffer.length, GFP_KERNEL); + if (!priv->data_vault) { + kfree(buffer.pointer); + return; + } + bin_attr_data_vault.private = priv->data_vault; bin_attr_data_vault.size = obj->package.elements[0].buffer.length; kfree(buffer.pointer); |