diff options
| author | Colin Ian King <colin.king@canonical.com> | 2018-04-20 10:57:16 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-07-03 11:18:40 +0200 |
| commit | f22893b2a3e238ff239a54df0ff056565dc3a8ab (patch) | |
| tree | 49db537ff653bb7f89a7f6eee8906523ee0e8494 /drivers | |
| parent | 220bc438c094d4b6c233e7f3c4d152e44db2cff0 (diff) | |
scsi: isci: Fix infinite loop in while loop
[ Upstream commit 4bc83b3f272fe8f36450f9c003df49cf07ffe5fd ]
In the case when the phy_mask is bitwise anded with the phy_index bit is
zero the continue statement currently jumps to the next iteration of the
while loop and phy_index is never actually incremented, potentially
causing an infinite loop if phy_index is less than SCI_MAX_PHS. Fix this
by turning the while loop into a for loop.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/isci/port_config.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/scsi/isci/port_config.c b/drivers/scsi/isci/port_config.c index ac879745ef80..18a409bb9e0c 100644 --- a/drivers/scsi/isci/port_config.c +++ b/drivers/scsi/isci/port_config.c @@ -291,7 +291,7 @@ sci_mpc_agent_validate_phy_configuration(struct isci_host *ihost, * Note: We have not moved the current phy_index so we will actually * compare the startting phy with itself. * This is expected and required to add the phy to the port. */ - while (phy_index < SCI_MAX_PHYS) { + for (; phy_index < SCI_MAX_PHYS; phy_index++) { if ((phy_mask & (1 << phy_index)) == 0) continue; sci_phy_get_sas_address(&ihost->phys[phy_index], @@ -311,7 +311,6 @@ sci_mpc_agent_validate_phy_configuration(struct isci_host *ihost, &ihost->phys[phy_index]); assigned_phy_mask |= (1 << phy_index); - phy_index++; } } |