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Clang warns (or errors with CONFIG_WERROR=y):
drivers/remoteproc/st_remoteproc.c:357:6: error: variable 'ret' is used uninitialized whenever 'if' condition is true [-Werror,-Wsometimes-uninitialized]
357 | if (!ddata->config)
| ^~~~~~~~~~~~~~
drivers/remoteproc/st_remoteproc.c:442:9: note: uninitialized use occurs here
442 | return ret;
| ^~~
drivers/remoteproc/st_remoteproc.c:357:2: note: remove the 'if' if its condition is always false
357 | if (!ddata->config)
| ^~~~~~~~~~~~~~~~~~~
358 | goto free_rproc;
| ~~~~~~~~~~~~~~~
drivers/remoteproc/st_remoteproc.c:348:9: note: initialize the variable 'ret' to silence this warning
348 | int ret, i;
| ^
| = 0
1 error generated.
Set ret to -ENODEV, which seems to be a standard return code when
device_get_match_data() returns NULL.
Closes: https://github.com/ClangBuiltLinux/linux/issues/1944
Fixes: 5c77ebcd05 ("remoteproc: st: Use device_get_match_data()")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/r/20231012-st_remoteproc-fix-sometimes-uninit-v1-1-f64d0f2d5b37@kernel.org
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
3d8a18697a