inside the 'for' looping:
the return value 'rv' may override if not have a check in time.
next checking, outside the 'for' looping:
can not find failure which generated during the 'for' looping
so need let outside know about the failure.
Signed-off-by: Chen Gang <gang.c...@asianux.com>
---
drivers/usb/serial/mos7840.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index a0d5ea5..13aae1e 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -651,7 +651,9 @@ static void mos7840_interrupt_callback(struct urb *urb)
wreg = MODEM_STATUS_REGISTER;
break;
}
- rv = mos7840_get_reg(mos7840_port, wval, wreg,
&Data);
+ if (mos7840_get_reg(mos7840_port, wval,
+ wreg, &Data) < 0)
+ rv = -1;
}
}
}
--
1.7.7.6
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