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tg3: fix return value check in tg3_read_vpd()

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Besides -ETIMEDOUT and -EINTR, pci_read_vpd may return other error
values like -ENODEV or -EINVAL which are ignored due to the buggy
check, but the data are not read from VPD anyway and this is checked
subsequently with at most 3 needless loop iterations. This does not
show up as a runtime bug.

CC: Matt Carlson <mcarlson@broadcom.com>
CC: Michael Chan <mchan@broadcom.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Sterba 2010-12-29 03:40:31 +00:00 committed by David S. Miller
parent f7e4c9775e
commit 824f5f38d3
1 changed files with 1 additions and 1 deletions
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2
drivers/net/tg3.c
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@ -12658,7 +12658,7 @@ static void __devinit tg3_read_vpd(struct tg3 *tp)
cnt = pci_read_vpd(tp->pdev, pos,
TG3_NVM_VPD_LEN - pos,
&vpd_data[pos]);
if (cnt == -ETIMEDOUT || -EINTR)
if (cnt == -ETIMEDOUT || cnt == -EINTR)
cnt = 0;
else if (cnt < 0)
goto out_not_found;