diff options
| author | Nathan Chancellor <nathan@kernel.org> | 2022-05-23 08:05:22 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-06-10 15:29:17 +0200 |
| commit | bd476c1306ea989d6d9eb65295572e98d93edeb6 (patch) | |
| tree | a0dbf65e44b6d6f2c1377584b447018e031145d5 | |
| parent | 242439f7e279d86b3f73b5de724bc67b2f8aeb07 (diff) | |
misc: rtsx: Fix clang -Wsometimes-uninitialized in rts5261_init_from_hw()
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>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20220523150521.2947108-1-nathan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/misc/cardreader/rts5261.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/misc/cardreader/rts5261.c b/drivers/misc/cardreader/rts5261.c index 749cc5a46d13..b1e76030cafd 100644 --- a/drivers/misc/cardreader/rts5261.c +++ b/drivers/misc/cardreader/rts5261.c @@ -407,6 +407,8 @@ static void rts5261_init_from_hw(struct rtsx_pcr *pcr) // default setting_reg1 = PCR_SETTING_REG1; setting_reg2 = PCR_SETTING_REG2; + } else { + return; } pci_read_config_dword(pdev, setting_reg2, &lval2); |