Messages in this thread Patch in this message |  | | | Date | Fri, 17 Oct 2008 20:54:58 +0800 | | From | Zhaolei <> | | Subject | [PATCH] Fix debugfs_create_file's error checking method for usb/gadget/ |
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Hi,
debugfs_create_file() returns NULL if an error occurs, returns -ENODEV when debugfs is not enabled in the kernel.
Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com> --- drivers/usb/gadget/s3c2410_udc.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/usb/gadget/s3c2410_udc.c b/drivers/usb/gadget/s3c2410_udc.c index 29d13eb..4ba50ef 100644 --- a/drivers/usb/gadget/s3c2410_udc.c +++ b/drivers/usb/gadget/s3c2410_udc.c @@ -1894,7 +1894,7 @@ static int s3c2410_udc_probe(struct platform_device *pdev) udc->regs_info = debugfs_create_file("registers", S_IRUGO, s3c2410_udc_debugfs_root, udc, &s3c2410_udc_debugfs_fops); - if (IS_ERR(udc->regs_info)) { + if (IS_ERR(udc->regs_info) || !udc->regs_info) { dev_warn(dev, "debugfs file creation failed %ld\n", PTR_ERR(udc->regs_info)); udc->regs_info = NULL; -- 1.5.5.3
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