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nfc: port100: fix using -ERRNO as command type mask
During probing, the driver tries to get a list (mask) of supported
command types in port100_get_command_type_mask() function. The value
is u64 and 0 is treated as invalid mask (no commands supported). The
function however returns also -ERRNO as u64 which will be interpret as
valid command mask.
Return 0 on every error case of port100_get_command_type_mask(), so the
probing will stop.
Cc: <stable@vger.kernel.org>
Fixes: 0347a6ab30
("NFC: port100: Commands mechanism implementation")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
eacd68b7ce
commit
2195f2062e
1 changed files with 2 additions and 2 deletions
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@ -1006,11 +1006,11 @@ static u64 port100_get_command_type_mask(struct port100 *dev)
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skb = port100_alloc_skb(dev, 0);
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skb = port100_alloc_skb(dev, 0);
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if (!skb)
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if (!skb)
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return -ENOMEM;
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return 0;
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resp = port100_send_cmd_sync(dev, PORT100_CMD_GET_COMMAND_TYPE, skb);
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resp = port100_send_cmd_sync(dev, PORT100_CMD_GET_COMMAND_TYPE, skb);
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if (IS_ERR(resp))
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if (IS_ERR(resp))
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return PTR_ERR(resp);
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return 0;
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if (resp->len < 8)
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if (resp->len < 8)
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mask = 0;
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mask = 0;
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