[netdrvr] smc91x: fix resource removal (null ptr deref)

Properly handle resource cleanup on unplug/exit.

Spotted by Jonathan Cameron

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

diff --git a/drivers/net/smc91x.c b/drivers/net/smc91x.c
index 2040965..24768c1 100644 (file)
--- a/drivers/net/smc91x.c
+++ b/drivers/net/smc91x.c
@@ -2255,7 +2255,7 @@ static int smc_drv_remove(struct platform_device *pdev)
 
        res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "smc91x-regs");
        if (!res)
-               platform_get_resource(pdev, IORESOURCE_MEM, 0);
+               res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
        release_mem_region(res->start, SMC_IO_EXTENT);
 
        free_netdev(ndev);