locking/ww-mutex: Fix uninitialized use of ret in test_aa()
Clang warns: kernel/locking/test-ww_mutex.c:138:7: error: variable 'ret' is used uninitialized whenever 'if' condition is true [-Werror,-Wsometimes-uninitialized] if (!ww_mutex_trylock(&mutex, &ctx)) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/locking/test-ww_mutex.c:172:9: note: uninitialized use occurs here return ret; ^~~ kernel/locking/test-ww_mutex.c:138:3: note: remove the 'if' if its condition is always false if (!ww_mutex_trylock(&mutex, &ctx)) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/locking/test-ww_mutex.c:125:9: note: initialize the variable 'ret' to silence this warning int ret; ^ = 0 1 error generated. Assign !ww_mutex_trylock(...) to ret so that it is always initialized. Fixes: 12235da8 ("kernel/locking: Add context to ww_mutex_trylock()") Reported-by: "kernelci.org bot" <bot@kernelci.org> Repo...
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