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author | Bhaumik Bhatt <bbhatt@codeaurora.org> | 2020-11-09 12:47:31 -0800 |
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committer | Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> | 2020-11-18 15:20:34 +0530 |
commit | 6cc1716102b55497dd557e8295a3177315332f9a (patch) | |
tree | cbc7b7e46c2434bcf52d0987024695399fd66006 /include | |
parent | a03c7a86e12721da9f6bb509dddda19fd9ae8c6c (diff) | |
download | linux-stable-6cc1716102b55497dd557e8295a3177315332f9a.tar.gz linux-stable-6cc1716102b55497dd557e8295a3177315332f9a.tar.bz2 linux-stable-6cc1716102b55497dd557e8295a3177315332f9a.zip |
bus: mhi: core: Remove MHI event ring IRQ handlers when powering down
While powering down, the device may or may not acknowledge an MHI
RESET issued by host for a graceful shutdown scenario and end up
sending an incoming data packet after tasklets have been killed.
If a rogue device sends this interrupt for a data transfer event
ring update, it can result in a tasklet getting scheduled while a
clean up is ongoing or has completed and cause access to freed
memory leading to a NULL pointer exception. Remove the interrupt
handlers for MHI event rings early on to avoid this scenario.
Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions