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Date: Wed, 30 Jul 2014 16:11:59 +0530
From: Anil Belur <askb23@...il.com>
To: tklauser@...tanz.ch, dan.carpenter@...cle.com, bjorn@...k.no,
silvio.fricke@...il.com, gregkh@...uxfoundation.org
Cc: devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
Anil Belur <askb23@...il.com>
Subject: [PATCH v2 1/1] staging: vt6655: ioctl.c - missing __user annotation
From: Anil Belur <askb23@...il.com>
v2:
- private_ioctl() internally calls copy_{to,from}_user() and does
not use '__user' which gives out several sparse warnings
- this patch adds __user annotation to the data member of struct
tagSCmdRequest as suggested by tklauser@...tanz.ch
- sparse warnings fixed:
drivers/staging/vt6655/ioctl.c:78:51: warning: incorrect type in argument 2 (different address spaces)
drivers/staging/vt6655/ioctl.c:78:51: expected void const [noderef] asn:1>*from
drivers/staging/vt6655/ioctl.c:78:51: got void *data
drivers/staging/vt6655/ioctl.c:117:55: warning: incorrect type in argument 2 (different address spaces)
drivers/staging/vt6655/ioctl.c:117:55: expected void const [noderef] asn:1>*from
drivers/staging/vt6655/ioctl.c:117:55: got void *data
drivers/staging/vt6655/ioctl.c:149:46: warning: incorrect type in argument 1 (different address spaces)
drivers/staging/vt6655/ioctl.c:149:46: expected void [noderef] asn:1>*to
drivers/staging/vt6655/ioctl.c:149:46: got void *data
drivers/staging/vt6655/ioctl.c:166:51: warning: incorrect type in argument 2 (different address spaces)
drivers/staging/vt6655/ioctl.c:166:51: expected void const [noderef] asn:1>*from
drivers/staging/vt6655/ioctl.c:166:51: got void *data
drivers/staging/vt6655/ioctl.c:212:50: warning: incorrect type in argument 2 (different address spaces)
drivers/staging/vt6655/ioctl.c:212:50: expected void const [noderef] asn:1>*from
drivers/staging/vt6655/ioctl.c:212:50: got void *data
drivers/staging/vt6655/ioctl.c:276:38: warning: incorrect type in argument 1 (different address spaces)
drivers/staging/vt6655/ioctl.c:276:38: expected void [noderef] asn:1>*to
drivers/staging/vt6655/ioctl.c:276:38: got void *data
drivers/staging/vt6655/ioctl.c:292:38: warning: incorrect type in argument 1 (different address spaces)
drivers/staging/vt6655/ioctl.c:292:38: expected void [noderef] asn:1>*to
drivers/staging/vt6655/ioctl.c:292:38: got void *data
drivers/staging/vt6655/ioctl.c:300:48: warning: incorrect type in argument 2 (different address spaces)
drivers/staging/vt6655/ioctl.c:300:48: expected void const [noderef] asn:1>*from
drivers/staging/vt6655/ioctl.c:300:48: got void *data
drivers/staging/vt6655/ioctl.c:344:38: warning: incorrect type in argument 1 (different address spaces)
drivers/staging/vt6655/ioctl.c:344:38: expected void [noderef] asn:1>*to
drivers/staging/vt6655/ioctl.c:344:38: got void *data
drivers/staging/vt6655/ioctl.c:353:38: warning: incorrect type in argument 1 (different address spaces)
drivers/staging/vt6655/ioctl.c:353:38: expected void [noderef] asn:1>*to
drivers/staging/vt6655/ioctl.c:353:38: got void *data
drivers/staging/vt6655/ioctl.c:360:38: warning: incorrect type in argument 1 (different address spaces)
drivers/staging/vt6655/ioctl.c:360:38: expected void [noderef] asn:1>*to
drivers/staging/vt6655/ioctl.c:360:38: got void *data
drivers/staging/vt6655/ioctl.c:401:49: warning: incorrect type in argument 2 (different address spaces)
drivers/staging/vt6655/ioctl.c:401:49: expected void const [noderef] asn:1>*from
drivers/staging/vt6655/ioctl.c:401:49: got void *data
drivers/staging/vt6655/ioctl.c:424:49: warning: incorrect type in argument 2 (different address spaces)
drivers/staging/vt6655/ioctl.c:424:49: expected void const [noderef] asn:1>*from
drivers/staging/vt6655/ioctl.c:424:49: got void *data
drivers/staging/vt6655/ioctl.c:440:49: warning: incorrect type in argument 2 (different address spaces)
drivers/staging/vt6655/ioctl.c:440:49: expected void const [noderef] asn:1>*from
drivers/staging/vt6655/ioctl.c:440:49: got void *data
drivers/staging/vt6655/ioctl.c:457:49: warning: incorrect type in argument 2 (different address spaces)
drivers/staging/vt6655/ioctl.c:457:49: expected void const [noderef] asn:1>*from
drivers/staging/vt6655/ioctl.c:457:49: got void *data
drivers/staging/vt6655/ioctl.c:479:54: warning: incorrect type in argument 2 (different address spaces)
drivers/staging/vt6655/ioctl.c:479:54: expected void const [noderef] asn:1>*from
drivers/staging/vt6655/ioctl.c:479:54: got void *data
drivers/staging/vt6655/ioctl.c:563:38: warning: incorrect type in argument 1 (different address spaces)
drivers/staging/vt6655/ioctl.c:563:38: expected void [noderef] asn:1>*to
drivers/staging/vt6655/ioctl.c:563:38: got void *data
drivers/staging/vt6655/ioctl.c:571:52: warning: incorrect type in argument 2 (different address spaces)
drivers/staging/vt6655/ioctl.c:571:52: expected void const [noderef] asn:1>*from
drivers/staging/vt6655/ioctl.c:571:52: got void *data
drivers/staging/vt6655/ioctl.c:615:38: warning: incorrect type in argument 1 (different address spaces)
drivers/staging/vt6655/ioctl.c:615:38: expected void [noderef] asn:1>*to
drivers/staging/vt6655/ioctl.c:615:38: got void *data
drivers/staging/vt6655/ioctl.c:631:53: warning: incorrect type in argument 2 (different address spaces)
drivers/staging/vt6655/ioctl.c:631:53: expected void const [noderef] asn:1>*from
drivers/staging/vt6655/ioctl.c:631:53: got void *data
Signed-off-by: Anil Belur <askb23@...il.com>
---
drivers/staging/vt6655/iocmd.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/vt6655/iocmd.h b/drivers/staging/vt6655/iocmd.h
index e499f1b..dd12498 100644
--- a/drivers/staging/vt6655/iocmd.h
+++ b/drivers/staging/vt6655/iocmd.h
@@ -100,7 +100,7 @@ typedef enum tagWZONETYPE {
#pragma pack(1)
typedef struct tagSCmdRequest {
u8 name[16];
- void *data;
+ void __user *data;
u16 wResult;
u16 wCmdCode;
} SCmdRequest, *PSCmdRequest;
--
1.9.1
--
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