From cbe01f723e9287adb70410b69bedfdc87cd820b4 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 18 Sep 2012 11:41:54 -0700 Subject: [PATCH] staging: comedi: comedi_fops: rename the __user *cmd param in do_cmd_ioctl This parameter is actually the unsigned long arg passed in the ioctl. comedi_unlocked_ioctl() casts it as a (struct comedi_cmd __user *) when calling do_cmd_ioctl(). Rename the variable to keep this clear. Signed-off-by: H Hartley Sweeten Cc: Ian Abbott Acked-by: Dan Carpenter Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/comedi_fops.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c index 00d8d1f..04e299a 100644 --- a/drivers/staging/comedi/comedi_fops.c +++ b/drivers/staging/comedi/comedi_fops.c @@ -1131,7 +1131,7 @@ static void comedi_set_subdevice_runflags(struct comedi_subdevice *s, } static int do_cmd_ioctl(struct comedi_device *dev, - struct comedi_cmd __user *cmd, void *file) + struct comedi_cmd __user *arg, void *file) { struct comedi_cmd user_cmd; struct comedi_subdevice *s; @@ -1139,7 +1139,7 @@ static int do_cmd_ioctl(struct comedi_device *dev, int ret = 0; unsigned int __user *chanlist_saver = NULL; - if (copy_from_user(&user_cmd, cmd, sizeof(struct comedi_cmd))) { + if (copy_from_user(&user_cmd, arg, sizeof(struct comedi_cmd))) { DPRINTK("bad cmd address\n"); return -EFAULT; } @@ -1230,7 +1230,7 @@ static int do_cmd_ioctl(struct comedi_device *dev, /* restore chanlist pointer before copying back */ user_cmd.chanlist = chanlist_saver; user_cmd.data = NULL; - if (copy_to_user(cmd, &user_cmd, sizeof(struct comedi_cmd))) { + if (copy_to_user(arg, &user_cmd, sizeof(struct comedi_cmd))) { DPRINTK("fault writing cmd\n"); ret = -EFAULT; goto cleanup; -- 2.7.4