linux-kernel - [PATCH] misc: rtsx: Set setting

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Date:   Mon, 16 May 2022 09:00:47 -0400
From:   Tom Rix <trix@...hat.com>
To:     arnd@...db.de, gregkh@...uxfoundation.org, nathan@...nel.org,
        ndesaulniers@...gle.com, ricky_wu@...ltek.com,
        kai.heng.feng@...onical.com
Cc:     linux-kernel@...r.kernel.org, llvm@...ts.linux.dev,
        Tom Rix <trix@...hat.com>
Subject: [PATCH] misc: rtsx: Set setting_reg2 before use.

The clang build fails with
rts5261.c:406:13: error: variable 'setting_reg2' is used uninitialized whenever 'if' condition is false [-Werror,-Wsometimes-uninitialized]
        } else if (efuse_valid == 0) {
                   ^~~~~~~~~~~~~~~~

setting_reg2 is set in this block
  if (efuse_valid == 2 || efuse_valid == 3) {
..
  } else if (efuse_valid == 0) {
    // default
..
  }
But efuse_valid can also have a value of 1.
Change the 'else if' to 'else' to make the second block the default.

Fixes: b1c5f3085149 ("misc: rtsx: add rts5261 efuse function")
Signed-off-by: Tom Rix <trix@...hat.com>
---
 drivers/misc/cardreader/rts5261.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/misc/cardreader/rts5261.c b/drivers/misc/cardreader/rts5261.c
index 749cc5a46d13..f22634b14dc8 100644
--- a/drivers/misc/cardreader/rts5261.c
+++ b/drivers/misc/cardreader/rts5261.c
@@ -403,7 +403,7 @@ static void rts5261_init_from_hw(struct rtsx_pcr *pcr)
 			setting_reg1 = PCR_SETTING_REG4;
 			setting_reg2 = PCR_SETTING_REG5;
 		}
-	} else if (efuse_valid == 0) {
+	} else {
 		// default
 		setting_reg1 = PCR_SETTING_REG1;
 		setting_reg2 = PCR_SETTING_REG2;
-- 
2.27.0