[PATCH][next] staging: ks7010: fix null pointer dereference on priv on error exit

[Colin King]

From: Colin Ian King <colin.king@xxxxxxxxxxxxx>

In the case where the call to dev_alloc_name fails the current exit
path is via err_free_netdev and this calls free_netdev on a null priv
pointer, hence causing a null pointer dereference.  Fix this by instead
exiting via err_release_irq.

Detected by CoverityScan, CID#1467844 ("Explitic null dereferenced")

Fixes: 13a9930d15b4 ("staging: ks7010: add driver from Nanonote extra-repository")
Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---
 drivers/staging/ks7010/ks7010_sdio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/ks7010/ks7010_sdio.c b/drivers/staging/ks7010/ks7010_sdio.c
index b8f55a11ee1c..cb0e11d79e32 100644
--- a/drivers/staging/ks7010/ks7010_sdio.c
+++ b/drivers/staging/ks7010/ks7010_sdio.c
@@ -895,7 +895,7 @@ static int ks7010_sdio_probe(struct sdio_func *func,
 		netdev_err(priv->net_dev,
 			   "ks7010: firmware load failed !! return code = %d\n",
 			   ret);
-		goto err_free_netdev;
+		goto err_release_irq;
 	}
 
 	/* interrupt setting */
-- 
2.17.0