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authorStanley Chu <stanley.chu@mediatek.com>2020-03-18 11:40:10 +0100
committerMartin K. Petersen <martin.petersen@oracle.com>2020-03-27 03:07:12 +0100
commitba0320fbb809de541a9b396e153171151607bac8 (patch)
tree1a9541ad3254ec02a01a278c37fa65f0f8bbdc74
parentscsi: iscsi: Report connection state in sysfs (diff)
downloadlinux-ba0320fbb809de541a9b396e153171151607bac8.tar.xz
linux-ba0320fbb809de541a9b396e153171151607bac8.zip
scsi: ufs: fix uninitialized tx_lanes in ufshcd_disable_tx_lcc()
In ufshcd_disable_tx_lcc(), if ufshcd_dme_get() or ufshcd_dme_peer_get() get fail, uninitialized variable "tx_lanes" may be used as unexpected lane ID for DME configuration. Fix this issue by initializing "tx_lanes". Link: https://lore.kernel.org/r/20200318104016.28049-2-stanley.chu@mediatek.com Reviewed-by: Avri Altman <avri.altman@wdc.com> Reviewed-by: Can Guo <cang@codeaurora.org> Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
-rw-r--r--drivers/scsi/ufs/ufshcd.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 2a2a63b68a67..597b704dea57 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -4249,7 +4249,7 @@ EXPORT_SYMBOL_GPL(ufshcd_hba_enable);
static int ufshcd_disable_tx_lcc(struct ufs_hba *hba, bool peer)
{
- int tx_lanes, i, err = 0;
+ int tx_lanes = 0, i, err = 0;
if (!peer)
ufshcd_dme_get(hba, UIC_ARG_MIB(PA_CONNECTEDTXDATALANES),