staging: octeon: check request_irq() return value

request_irq() may fail, if so propagate error code.

Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
Acked-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/staging/octeon/ethernet-spi.c b/drivers/staging/octeon/ethernet-spi.c
index b58b8971f939..970825421884 100644
--- a/drivers/staging/octeon/ethernet-spi.c
+++ b/drivers/staging/octeon/ethernet-spi.c
@@ -294,6 +294,8 @@ int cvm_oct_spi_init(struct net_device *dev)
         if (number_spi_ports == 0) {
                 r = request_irq(OCTEON_IRQ_RML, cvm_oct_spi_rml_interrupt,
                                 IRQF_SHARED, "SPI", &number_spi_ports);
+                if (r)
+                        return r;
         }
         number_spi_ports++;