ptp: ocp: Fix uninitialized variable warning spotted by clang.
If attempting to flash the firmware with a blob of size 0, the entire write loop is skipped and the uninitialized err is returned. Fix by setting to 0 first. Fixes: 773bda96 ("ptp: ocp: Expose various resources on the timecard.") Signed-off-by: Jonathan Lemon <jonathan.lemon@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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