diff options
| author | Jiasheng Jiang <jiasheng@iscas.ac.cn> | 2022-01-26 09:48:53 +0800 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2022-02-04 18:55:43 +0100 |
| commit | 38b16d6cfe54c820848bcfc999bc5e8a7da1cefb (patch) | |
| tree | b8f929837477c72fe027a6ced6bae1867a6bdd51 /drivers/thermal/intel/int340x_thermal/int3400_thermal.c | |
| parent | 26291c54e111ff6ba87a164d85d4a4e134b7315c (diff) | |
| download | linux-38b16d6cfe54c820848bcfc999bc5e8a7da1cefb.tar.bz2 | |
thermal: int340x: Check for NULL after calling kmemdup()
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>
Diffstat (limited to 'drivers/thermal/intel/int340x_thermal/int3400_thermal.c')
| -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 72acb1f61849..82de8bcd368f 100644 --- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c +++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c @@ -464,6 +464,11 @@ 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); |