linux-kernel - [PATCH 3.18 40/47] aic94xx: Skip reading user settings if flash is not found

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Message-Id: <20170428083039.960553021@linuxfoundation.org>
Date:   Fri, 28 Apr 2017 10:32:53 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Hannes Reinecke <hare@...e.de>,
        Christoph Hellwig <hch@....de>,
        James Bottomley <JBottomley@...n.com>,
        Arnd Bergmann <arnd@...db.de>
Subject: [PATCH 3.18 40/47] aic94xx: Skip reading user settings if flash is not found

3.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Hannes Reinecke <hare@...e.de>

commit 36dd5acd196574d41de3e81d8264df475bbb7123 upstream.

If no user settings are found it's pointless trying to
read them from flash. So skip that step.
This also fixes a compilation warning about uninitialized variables in
aic94xx.

Signed-off-by: Hannes Reinecke <hare@...e.de>
Reviewed-by: Christoph Hellwig <hch@....de>
Signed-off-by: James Bottomley <JBottomley@...n.com>
Cc: Arnd Bergmann <arnd@...db.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/scsi/aic94xx/aic94xx_sds.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

--- a/drivers/scsi/aic94xx/aic94xx_sds.c
+++ b/drivers/scsi/aic94xx/aic94xx_sds.c
@@ -983,7 +983,7 @@ static int asd_process_ctrl_a_user(struc
 {
 	int err, i;
 	u32 offs, size;
-	struct asd_ll_el *el;
+	struct asd_ll_el *el = NULL;
 	struct asd_ctrla_phy_settings *ps;
 	struct asd_ctrla_phy_settings dflt_ps;
 
@@ -1004,6 +1004,7 @@ static int asd_process_ctrl_a_user(struc
 
 		size = sizeof(struct asd_ctrla_phy_settings);
 		ps = &dflt_ps;
+		goto out_process;
 	}
 
 	if (size == 0)
@@ -1028,7 +1029,7 @@ static int asd_process_ctrl_a_user(struc
 		ASD_DPRINTK("couldn't find ctrla phy settings struct\n");
 		goto out2;
 	}
-
+out_process:
 	err = asd_process_ctrla_phy_settings(asd_ha, ps);
 	if (err) {
 		ASD_DPRINTK("couldn't process ctrla phy settings\n");