aboutsummaryrefslogtreecommitdiff
path: root/arch/mips/include/asm/termios.h
diff options
context:
space:
mode:
authorDavid Vrabel <david.vrabel@csr.com>2009-02-02 17:52:39 +0000
committerDavid Vrabel <david.vrabel@csr.com>2009-02-02 17:52:39 +0000
commit8f04915532485d81e7f6c580a396ea7b01094221 (patch)
treec5740e961a025f2fb6b520a2bc5937f19d4345ab /arch/mips/include/asm/termios.h
parent8f5140a6a0b1a9aa79585b0008e88c5d266c5c1d (diff)
parent45c82b5a770be66845687a7d027c8b52946d59af (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-upstream
Diffstat (limited to 'arch/mips/include/asm/termios.h')
-rw-r--r--arch/mips/include/asm/termios.h100
1 files changed, 72 insertions, 28 deletions
diff --git a/arch/mips/include/asm/termios.h b/arch/mips/include/asm/termios.h
index a275661fa7e..8f77f774a2a 100644
--- a/arch/mips/include/asm/termios.h
+++ b/arch/mips/include/asm/termios.h
@@ -9,6 +9,7 @@
#ifndef _ASM_TERMIOS_H
#define _ASM_TERMIOS_H
+#include <linux/errno.h>
#include <asm/termbits.h>
#include <asm/ioctls.h>
@@ -94,38 +95,81 @@ struct termio {
/*
* Translate a "termio" structure into a "termios". Ugh.
*/
-#define user_termio_to_kernel_termios(termios, termio) \
-({ \
- unsigned short tmp; \
- get_user(tmp, &(termio)->c_iflag); \
- (termios)->c_iflag = (0xffff0000 & ((termios)->c_iflag)) | tmp; \
- get_user(tmp, &(termio)->c_oflag); \
- (termios)->c_oflag = (0xffff0000 & ((termios)->c_oflag)) | tmp; \
- get_user(tmp, &(termio)->c_cflag); \
- (termios)->c_cflag = (0xffff0000 & ((termios)->c_cflag)) | tmp; \
- get_user(tmp, &(termio)->c_lflag); \
- (termios)->c_lflag = (0xffff0000 & ((termios)->c_lflag)) | tmp; \
- get_user((termios)->c_line, &(termio)->c_line); \
- copy_from_user((termios)->c_cc, (termio)->c_cc, NCC); \
-})
+static inline int user_termio_to_kernel_termios(struct ktermios *termios,
+ struct termio __user *termio)
+{
+ unsigned short iflag, oflag, cflag, lflag;
+ unsigned int err;
+
+ if (!access_ok(VERIFY_READ, termio, sizeof(struct termio)))
+ return -EFAULT;
+
+ err = __get_user(iflag, &termio->c_iflag);
+ termios->c_iflag = (termios->c_iflag & 0xffff0000) | iflag;
+ err |=__get_user(oflag, &termio->c_oflag);
+ termios->c_oflag = (termios->c_oflag & 0xffff0000) | oflag;
+ err |=__get_user(cflag, &termio->c_cflag);
+ termios->c_cflag = (termios->c_cflag & 0xffff0000) | cflag;
+ err |=__get_user(lflag, &termio->c_lflag);
+ termios->c_lflag = (termios->c_lflag & 0xffff0000) | lflag;
+ err |=__get_user(termios->c_line, &termio->c_line);
+ if (err)
+ return -EFAULT;
+
+ if (__copy_from_user(termios->c_cc, termio->c_cc, NCC))
+ return -EFAULT;
+
+ return 0;
+}
/*
* Translate a "termios" structure into a "termio". Ugh.
*/
-#define kernel_termios_to_user_termio(termio, termios) \
-({ \
- put_user((termios)->c_iflag, &(termio)->c_iflag); \
- put_user((termios)->c_oflag, &(termio)->c_oflag); \
- put_user((termios)->c_cflag, &(termio)->c_cflag); \
- put_user((termios)->c_lflag, &(termio)->c_lflag); \
- put_user((termios)->c_line, &(termio)->c_line); \
- copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \
-})
-
-#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios2))
-#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios2))
-#define user_termios_to_kernel_termios_1(k, u) copy_from_user(k, u, sizeof(struct termios))
-#define kernel_termios_to_user_termios_1(u, k) copy_to_user(u, k, sizeof(struct termios))
+static inline int kernel_termios_to_user_termio(struct termio __user *termio,
+ struct ktermios *termios)
+{
+ int err;
+
+ if (!access_ok(VERIFY_WRITE, termio, sizeof(struct termio)))
+ return -EFAULT;
+
+ err = __put_user(termios->c_iflag, &termio->c_iflag);
+ err |= __put_user(termios->c_oflag, &termio->c_oflag);
+ err |= __put_user(termios->c_cflag, &termio->c_cflag);
+ err |= __put_user(termios->c_lflag, &termio->c_lflag);
+ err |= __put_user(termios->c_line, &termio->c_line);
+ if (err)
+ return -EFAULT;
+
+ if (__copy_to_user(termio->c_cc, termios->c_cc, NCC))
+ return -EFAULT;
+
+ return 0;
+}
+
+static inline int user_termios_to_kernel_termios(struct ktermios __user *k,
+ struct termios2 *u)
+{
+ return copy_from_user(k, u, sizeof(struct termios2)) ? -EFAULT : 0;
+}
+
+static inline int kernel_termios_to_user_termios(struct termios2 __user *u,
+ struct ktermios *k)
+{
+ return copy_to_user(u, k, sizeof(struct termios2)) ? -EFAULT : 0;
+}
+
+static inline int user_termios_to_kernel_termios_1(struct ktermios *k,
+ struct termios __user *u)
+{
+ return copy_from_user(k, u, sizeof(struct termios)) ? -EFAULT : 0;
+}
+
+static inline int kernel_termios_to_user_termios_1(struct termios __user *u,
+ struct ktermios *k)
+{
+ return copy_to_user(u, k, sizeof(struct termios)) ? -EFAULT : 0;
+}
#endif /* defined(__KERNEL__) */