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author | Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> | 2021-10-25 16:49:36 +0200 |
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committer | David S. Miller <davem@davemloft.net> | 2021-10-26 13:42:00 +0100 |
commit | 2195f2062e4cc93870da8e71c318ef98a1c51cef (patch) | |
tree | 773ddf49af571841380ecf2cd876fe823bc21add /drivers/nfc | |
parent | eacd68b7ceaa82a5d15a286f727000cef898c0b0 (diff) | |
download | linux-2195f2062e4cc93870da8e71c318ef98a1c51cef.tar.gz |
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: 0347a6ab300a ("NFC: port100: Commands mechanism implementation") Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/nfc')
-rw-r--r-- | drivers/nfc/port100.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/nfc/port100.c b/drivers/nfc/port100.c index 517376c43b86..16ceb763594f 100644 --- a/drivers/nfc/port100.c +++ b/drivers/nfc/port100.c @@ -1006,11 +1006,11 @@ static u64 port100_get_command_type_mask(struct port100 *dev) skb = port100_alloc_skb(dev, 0); if (!skb) - return -ENOMEM; + return 0; resp = port100_send_cmd_sync(dev, PORT100_CMD_GET_COMMAND_TYPE, skb); if (IS_ERR(resp)) - return PTR_ERR(resp); + return 0; if (resp->len < 8) mask = 0; |