[PATCH] octeon: request_irq() failure ignored in cvm_oct_spi_init()

[Roel Kluin]

Produce an error if request_irq() fails. Replace incorrect hard coded
interrupt numbers used to free the octeon irq.

Signed-off-by: Roel Kluin <roel.kluin at gmail.com>
---
> Yikes, below this chunk are some incorrect hard coded interrupt numbers.

Maybe it should be this? Replaces the other patch.

diff --git a/drivers/staging/octeon/ethernet-spi.c b/drivers/staging/octeon/ethernet-spi.c
index 66190b0..9b654f2 100644
--- a/drivers/staging/octeon/ethernet-spi.c
+++ b/drivers/staging/octeon/ethernet-spi.c
@@ -295,6 +295,8 @@ 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 != 0)
+			return r;
 	}
 	number_spi_ports++;
 
@@ -317,6 +319,6 @@ void cvm_oct_spi_uninit(struct net_device *dev)
 			cvmx_write_csr(CVMX_SPXX_INT_MSK(interface), 0);
 			cvmx_write_csr(CVMX_STXX_INT_MSK(interface), 0);
 		}
-		free_irq(8 + 46, &number_spi_ports);
+		free_irq(OCTEON_IRQ_RML, &number_spi_ports);
 	}
 }