USB: musb: don't dereference NULL tusb_dma in dma_controller_destroy()
Test whether tusb_dma is not NULL before dereferencing
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/musb/tusb6010_omap.c b/drivers/usb/musb/tusb6010_omap.c
index e13c770..1c86809 100644
--- a/drivers/usb/musb/tusb6010_omap.c
+++ b/drivers/usb/musb/tusb6010_omap.c
@@ -648,7 +648,7 @@
}
}
- if (!tusb_dma->multichannel && tusb_dma && tusb_dma->ch >= 0)
+ if (tusb_dma && !tusb_dma->multichannel && tusb_dma->ch >= 0)
omap_free_dma(tusb_dma->ch);
kfree(tusb_dma);