We should avoid using BUG_ON() in drivers.
This patch switch to use WARN_ON() from BUG_ON(),
and avoid NULL pointer access by new macro.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto...@renesas.com>
---
v2 -> v3
- BUG_ON -> WARN_ON
drivers/usb/host/ohci-platform.c | 10 ++++++----
1 files changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/usb/host/ohci-platform.c b/drivers/usb/host/ohci-platform.c
index 670c705..d2893e6 100644
--- a/drivers/usb/host/ohci-platform.c
+++ b/drivers/usb/host/ohci-platform.c
@@ -16,6 +16,8 @@
#include <linux/platform_device.h>
#include <linux/usb/ohci_pdriver.h>
+#define ohci_pdata_get(pdata, x) ((pdata) ? (pdata)->x : 0)
+
static int ohci_platform_reset(struct usb_hcd *hcd)
{
struct platform_device *pdev = to_platform_device(hcd->self.controller);
@@ -23,11 +25,11 @@ static int ohci_platform_reset(struct usb_hcd *hcd)
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
int err;
- if (pdata->big_endian_desc)
+ if (ohci_pdata_get(pdata, big_endian_desc))
ohci->flags |= OHCI_QUIRK_BE_DESC;
- if (pdata->big_endian_mmio)
+ if (ohci_pdata_get(pdata, big_endian_mmio))
ohci->flags |= OHCI_QUIRK_BE_MMIO;
- if (pdata->no_big_frame_no)
+ if (ohci_pdata_get(pdata, no_big_frame_no))
ohci->flags |= OHCI_QUIRK_FRAME_NO;
ohci_hcd_init(ohci);
@@ -86,7 +88,7 @@ static int __devinit ohci_platform_probe(struct
platform_device *dev)
int irq;
int err = -ENOMEM;
- BUG_ON(!dev->dev.platform_data);
+ WARN_ON(!dev->dev.platform_data);
if (usb_disabled())
return -ENODEV;
--
1.7.5.4
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