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| author | Geert Uytterhoeven <geert@linux-m68k.org> | 2016-12-18 10:19:28 +0100 |
|---|---|---|
| committer | Johan Hovold <johan@kernel.org> | 2017-01-02 10:31:08 +0100 |
| commit | 427157631648c980e8bba4d73a21508b9e1a47ec (patch) | |
| tree | 7a72996439dd2c52ba443262a4af93628ed151d9 /arch | |
| parent | 0c744ea4f77d72b3dcebb7a8f2684633ec79be88 (diff) | |
USB: serial: f81534: detect errors from f81534_logic_to_phy_port()
With gcc 4.1.2:
drivers/usb/serial/f81534.c: In function ‘f81534_port_probe’:
drivers/usb/serial/f81534.c:1250: warning: comparison is always false due to limited range of data type
f81534_logic_to_phy_port() may return a negative error value, which is
ignored by assigning it to u8 f81534_port_private.phy_num.
Use an intermediate variable of type int to fix this.
While at it, forward the actual error code instead of converting it to
-ENODEV, and drop the useless check for F81534_NUM_PORT, as the callee
always returns a valid port number in case of success.
Fixes: 0c9bd6004d258d46 ("USB: serial: add Fintek F81532/534 driver")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Diffstat (limited to 'arch')