Resolve the following sparse warning:
drivers/staging//comedi/comedi_fops.c:2983:41: warning: incorrect type in
argument 1 (different address spaces)
drivers/staging//comedi/comedi_fops.c:2983:41: expected void [noderef]
<asn:1> *uptr
drivers/staging//comedi/comedi_fops.c:2983:41: got unsigned int *chanlist
cmd->chanlist is of type (unsigned int *) as defined in
"struct comedi_cmd" in file drivers/staging/comedi/comedi.h
The function "ptr_to_compat()" expects argument of type
(void __user *) as defined in include/linux/compat.h
Signed-off-by: Atul Gopinathan <atulgopinat...@gmail.com>
---
drivers/staging/comedi/comedi_fops.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/comedi/comedi_fops.c
b/drivers/staging/comedi/comedi_fops.c
index fc4ec38012b4..8b2672c3c408 100644
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -2980,7 +2980,7 @@ static int put_compat_cmd(struct comedi32_cmd_struct
__user *cmd32,
v32.stop_src = cmd->stop_src;
v32.stop_arg = cmd->stop_arg;
/* Assume chanlist pointer is unchanged. */
- v32.chanlist = ptr_to_compat(cmd->chanlist);
+ v32.chanlist = ptr_to_compat((void __user *)cmd->chanlist);
v32.chanlist_len = cmd->chanlist_len;
v32.data = ptr_to_compat(cmd->data);
v32.data_len = cmd->data_len;
--
2.27.0
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