From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Mon, 23 Nov 2015 19:50:11 +0000 (+0200)
Subject: usb: musb: fail with error when no DMA controller set
X-Git-Tag: firefly_0821_release~176^2~570^2~2^2
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=7d32cdef535622c0aea39807989f62cdddea207e;p=firefly-linux-kernel-4.4.55.git

usb: musb: fail with error when no DMA controller set

Fail with error when no DMA controller is set.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 3c07ffd392cf..ee9ff7028b92 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -2094,6 +2094,7 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
 #ifndef CONFIG_MUSB_PIO_ONLY
 	if (!musb->ops->dma_init || !musb->ops->dma_exit) {
 		dev_err(dev, "DMA controller not set\n");
+		status = -ENODEV;
 		goto fail2;
 	}
 	musb_dma_controller_create = musb->ops->dma_init;