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greybus: spi: validate spi master register 

Check for error in registering spi master, even though the current code
will fail a little more ahead when trying to register devices in the
master.

Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Reported-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Rui Miguel Silva 2015-12-15 19:09:55 +00:00 committed by Greg Kroah-Hartman
parent 5fbd1a0bcb
commit a92a2d46ac
1 changed files with 2 additions and 0 deletions
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2
drivers/staging/greybus/spi.c
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@ -360,6 +360,8 @@ static int gb_spi_connection_init(struct gb_connection *connection)
master->transfer_one_message = gb_spi_transfer_one_message;
ret = spi_register_master(master);
if (ret < 0)
goto out_put_master;
/* now, fetch the devices configuration */
for (i = 0; i < spi->num_chipselect; i++) {