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SubjectRe: [PATCH] misc: rtsx: Fix clang -Wsometimes-uninitialized in rts5261_init_from_hw()
On Mon, May 23, 2022 at 5:05 PM Nathan Chancellor <nathan@kernel.org> wrote:
>
> Clang warns:
>
> drivers/misc/cardreader/rts5261.c:406:13: error: variable 'setting_reg2' is used uninitialized whenever 'if' condition is false [-Werror,-Wsometimes-uninitialized]
> } else if (efuse_valid == 0) {
> ^~~~~~~~~~~~~~~~
> drivers/misc/cardreader/rts5261.c:412:30: note: uninitialized use occurs here
> pci_read_config_dword(pdev, setting_reg2, &lval2);
> ^~~~~~~~~~~~
>
> efuse_valid == 1 is not a valid value so just return early from the
> function to avoid using setting_reg2 uninitialized.
>
> Fixes: b1c5f3085149 ("misc: rtsx: add rts5261 efuse function")
> Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
> Reported-by: kernel test robot <lkp@intel.com>
> Reported-by: Tom Rix <trix@redhat.com>
> Suggested-by: Ricky WU <ricky_wu@realtek.com>
> Signed-off-by: Nathan Chancellor <nathan@kernel.org>

Looks good to me,

Acked-by: Arnd Bergmann <arnd@arndb.de>

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