linux-kernel - [PATCH 5.4 13/65] igc: set the default return value to -IGC_ERR_NVM in igc_write_nvm

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Date:   Mon,  8 Feb 2021 16:00:45 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Kevin Lo <kevlo@...lo.org>,
        Tony Nguyen <anthony.l.nguyen@...el.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.4 13/65] igc: set the default return value to -IGC_ERR_NVM in igc_write_nvm_srwr

From: Kevin Lo <kevlo@...lo.org>

[ Upstream commit ebc8d125062e7dccb7922b2190b097c20d88ad96 ]

This patch sets the default return value to -IGC_ERR_NVM in
igc_write_nvm_srwr. Without this change it wouldn't lead to a shadow RAM
write EEWR timeout.

Fixes: ab4056126813 ("igc: Add NVM support")
Signed-off-by: Kevin Lo <kevlo@...lo.org>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@...el.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/ethernet/intel/igc/igc_i225.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/igc/igc_i225.c b/drivers/net/ethernet/intel/igc/igc_i225.c
index c25f555aaf822..ed5d09c11c389 100644
--- a/drivers/net/ethernet/intel/igc/igc_i225.c
+++ b/drivers/net/ethernet/intel/igc/igc_i225.c
@@ -219,9 +219,9 @@ static s32 igc_write_nvm_srwr(struct igc_hw *hw, u16 offset, u16 words,
 			      u16 *data)
 {
 	struct igc_nvm_info *nvm = &hw->nvm;
+	s32 ret_val = -IGC_ERR_NVM;
 	u32 attempts = 100000;
 	u32 i, k, eewr = 0;
-	s32 ret_val = 0;
 
 	/* A check for invalid values:  offset too large, too many words,
 	 * too many words for the offset, and not enough words.
@@ -229,7 +229,6 @@ static s32 igc_write_nvm_srwr(struct igc_hw *hw, u16 offset, u16 words,
 	if (offset >= nvm->word_size || (words > (nvm->word_size - offset)) ||
 	    words == 0) {
 		hw_dbg("nvm parameter(s) out of bounds\n");
-		ret_val = -IGC_ERR_NVM;
 		goto out;
 	}
 
-- 
2.27.0