diff options
| author | Bhaumik Bhatt <bbhatt@codeaurora.org> | 2020-09-29 20:52:09 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-10-02 12:33:47 +0300 |
| commit | f42dfbe8f712127031e7b9bc938a1c33cec2ff57 (patch) | |
| tree | a04eea1edfbc6479b78de779604860372bcd32ac /drivers/bus | |
| parent | 8e3729bfa7be159d1f94d0caab9c1beff8268672 (diff) | |
| download | linux-f42dfbe8f712127031e7b9bc938a1c33cec2ff57.tar.xz | |
bus: mhi: core: Introduce APIs to allocate and free the MHI controller
Client devices should use the APIs provided to allocate and free
the MHI controller structure. This will help ensure that the
structure is zero-initialized and there are no false positives
with respect to reading any values such as the serial number or
the OEM PK hash.
Suggested-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20200929175218.8178-11-manivannan.sadhasivam@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/bus')
| -rw-r--r-- | drivers/bus/mhi/core/init.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/bus/mhi/core/init.c b/drivers/bus/mhi/core/init.c index e2011ec46b92..f69a2f3d039d 100644 --- a/drivers/bus/mhi/core/init.c +++ b/drivers/bus/mhi/core/init.c @@ -954,6 +954,22 @@ void mhi_unregister_controller(struct mhi_controller *mhi_cntrl) } EXPORT_SYMBOL_GPL(mhi_unregister_controller); +struct mhi_controller *mhi_alloc_controller(void) +{ + struct mhi_controller *mhi_cntrl; + + mhi_cntrl = kzalloc(sizeof(*mhi_cntrl), GFP_KERNEL); + + return mhi_cntrl; +} +EXPORT_SYMBOL_GPL(mhi_alloc_controller); + +void mhi_free_controller(struct mhi_controller *mhi_cntrl) +{ + kfree(mhi_cntrl); +} +EXPORT_SYMBOL_GPL(mhi_free_controller); + int mhi_prepare_for_power_up(struct mhi_controller *mhi_cntrl) { struct device *dev = &mhi_cntrl->mhi_dev->dev; |