On Tue, 11 May 2021, Michael Zaidman wrote:

Fixes: 6a82582d9fa4 ("HID: ft260: add usb hid to i2c host bridge driver")

The ft260_hid_feature_report_get() checks if the return size matches
the requested size. But the function can also fail with at least -ENOMEM.
Add the < 0 checks.

In ft260_hid_feature_report_get(), do not do the memcpy to the caller's
buffer if there is an error.

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v4   Fixed commit message
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v3   Simplify and optimize the changes
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v2:  add unlikely()'s for error conditions
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Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Michael Zaidman <michael.zaidman@gmail.com>

Who should be the author of the git commit?

Thanks,

-- 
Jiri Kosina
SUSE Labs