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dm: serial: Correct logic in serial_find_console_or_panic() 

In a final attempt to find a console UART this function uses the first
first available serial device. However the check for a valid device is
inverted.

This code is only executed when there is in fact no serial UART, but at
present it can fail to reach the panic_str() call in this case, and start
trying to use a non-existent UART.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
utp
Simon Glass 2015-07-31 09:31:20 -06:00
parent 2fda14ae6a
commit 753812cb2e
1 changed files with 1 additions and 1 deletions
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2
drivers/serial/serial-uclass.c
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@ -71,7 +71,7 @@ static void serial_find_console_or_panic(void)
#endif
if (!uclass_get_device_by_seq(UCLASS_SERIAL, INDEX, &dev) ||
!uclass_get_device(UCLASS_SERIAL, INDEX, &dev) ||
(!uclass_first_device(UCLASS_SERIAL, &dev) || dev)) {
(!uclass_first_device(UCLASS_SERIAL, &dev) && dev)) {
gd->cur_serial_dev = dev;
return;
}